You really have a nice find on your hands. You are very fortunate that it came with the optional spare tire mount and cover - - the alternative is struggling with a place to store the spare - - a none too pleasant process. It looks to be VERY original, I too wonder about the countertops and upholstery - - but one brochure that I have shows the fabric in a different color so it very well may be original - - the countertops may be a special order feature, as all of the brochures that I have show solid colors for the countertops with the exception of what could best be described as a gold speckle design.
Again, congratulations on your find!
Kevin D. Allen
WBCCI (Lifetime Member)/VAC/Free Wheelers #6359
1964 Overlander International/1999 GMC K2500 Suburban (7400 VORTEC/4.11 Differentials)
1978 Argosy Minuet 6.0 Metre/1975 Cadillac Eldorado Convertible (8.2 Liter V8/2.70 Final Drive)