Bokchoi

How are the hubcaps held on, on '70's Chinooks? Do they hug the lug nuts or do they squeeze into the wheel itself? I need to buy a set of wheels and there are lots of choices that aren't the original pre-'78 rims. For example I may go with Tacoma wheels or aftermarket universal steel wheels styled like a factory Ford or GM wheel. But I'd like to run original early Chinook hubcaps still. Any clue as to what will/won't let them work? Thanks

The Gaucho floor plan Chinook is set up for longitudinal sleeping as seen in the old advertisements. Is the sleeping situation transverse (across the vehicle) in a Chinook with dinette floor plan? Thanks