I thought this posted pricing guideline pdf was pretty handy
Good luck with your purchase.
Here is a formula for calculating a fair price for a Toyota Motorhome.
Of course the final price will be determined by what a buyer is willing
to pay and that can vary be region and time of year.
This formula includes a base price plus also amounts to add-on for
additional desirable features. More and more however a fair price is
increasingly determined by condition (poor to outstanding) as well as
just features.
Start with this Rule of Thumb:
Take the last digit of the year, subtract 1, and multiply by $1000.
(Prices are based on model year, not chassis year which could be one
year previous.)
Add $10,000 if the 3rd digit in the year is a 9. (1990 - 1994)
For a 4 cyl. ('83 - '89) calculate as above. For example 1987 = $6000.
For a V-6 engine, add $1000. Prices for nice condition V-6s start at
about $9,000 (1989) up to about $14,000 or more for a 1994 (the last
year made). Then add (or subtract) for features and condition -- see below.
[For '77 to '82 motorhomes in decent condition (not pop-tops) the prices
rarely are below $1500. Pop-top Chinooks and others (un-restored) can
be a bit less.]
Then to this base price apply the following factors.
For low miles (<50K) or low miles on a new engine, add about $1000 or
more. For high miles (over 150K) subtract at least as much.
Add about $600 if it has a built-in generator. (They cost $2000+ to install).
Add about $800 for a substantial solar system (80 watts or more with
controller).
If the coach is rather dirty, has poor exterior stripes, or is from a seller
that has neglected it for some time, subtract $1000 - $2000 or more.
If it has water damage to the interior of the walls, subtract $500 to $3000,
depending on the extent of the damage. The same for exterior damage,
especially for rust from salt that has damaged the frame.
If the refrigerator is weak or non-functional, subtract $500-$900.
If the exterior stripes have been replaced with new or the coach exterior
has been nicely repainted, add $1000-$2000. (Nice-looking exteriors are
getting harder and harder to come by, as age takes its toll.)
Other desirable features that add to the value are:
All New Tires -- add about $400
Patio Awning -- add about $200. (They cost about $800 to install.)
New Refrigerator or refrigerator cooling unit -- add $200-$500
Dual Coach Batteries with integrated inverter -- add about $200
Upgraded Stereo System -- add up to $200 (depending on components
and quality)
Alarm System -- add about $100
Remote-start Water Heater -- add about $100
Television /DVD system -- add $50-$150
Microwave -- add about $50
- - - - -
If the coach is from a Private Seller that has not neglected it,
and overall it looks much cleaner than average and well cared for,
add about $800.
If it is from a refurbisher who has detailed it and specifically tested
and repaired all of the multiple systems (= nice peace of mind),
add $1000-$2000.
If it is from a Dealer that gives a warranty, add about $1000.
If it is a Sunrader (most sought after), add up to $1200 depending on model.
Specific coaches possibly have other unique upgrades that may add to the
value depending on what the buyer is looking for. Examples: new upholstery,
new curtains, new flooring material, a storage pod, Fantastic Fan, Maxx Vent
covers, remote-fill air-springs compressor, back-up camera, auxiliary (or
jumbo) gas tank, additional outside shower, etc.
Recent engine and chassis work (or neglect) is also a factor and difficult to
calculate except on a case-by-case basis:
New brakes, new shocks, new muffler, recent timing chain or belt change,
tune-up, lubrication, valve adjustment, radiator service, transmission service,
suspension upgrades -- all should be taken into consideration -- as should
lack of these things.
Having service receipts helps to document any additional value for such
maintenance and upgrades.
- - - - - -
These guidelines are based on an informal study of Toyota motorhomes
currently being listed and sold, and are generally higher than the so-called
"official" bluebook or Nada Guides pricing. Nada Guides lists only
"average" or "below-average" condition, and unfortunately does not have a
category for pricing coaches that are well cared for and in top condition.
One additional note: eBay prices are different from in-person sales from
private sellers or dealers. eBay tends to be as much as 10% to 20% lower
when there is the unknown factor of buying a vehicle sight-unseen.
When buying from eBay, a pre-bid inspection is highly recommended.