Yes, price very well can be dependent upon scale. And certainly one's personal interests will flavor a hobbyist's price point for any given prototype subject model. Now speaking personally, for a kit that meets all the dream criteria which you layed out above and with a well-proportioned (not over-scale diameter) space frame, in a scale of 1/16 or larger I could become very interested in a model of the late-fifties Chevy powered Reventlow Scarab for prices like $200-$250 (1/16), $250-$300 (1/12), or $300-$350 (1/8). Of course I would expect full decals including trim striping for each of the Reventlow, Meister Brauser, and Nickey versions. alf in Iowa