On Ebay there is a 1967 Sunbeam Motorhome listed : Item number: 200164057134.
This may be like the one you are looking for. I have seen it a few times at
the Mad Dogs and Englishmen show in Kalamazoo, MI.. From my general
inspection it appears to be in good shape. Although with what appears to be a
Alpine 4 cyl it can't be too peppy on the road.
Jeff