Welcome Larry!
Sounds like a fair price. It all depends on condition and what you plan to do with it.
The '65 GS did not have a hood scoop hood, just a plain hood with a hood ornament at the front. '66 GS had chrome hood grilles, '67 had small ornamental scoops, '68 had a scoop back at the cowl, and '69-up had a raised center section with a fresh air inlet.
The Buick rally rims were used into the 1980's in 14 and 15 inch sizes. They're also reproduced.
For interior, Legendary interiors offers seat covers, door panels and much more. They often have sales, currently 15% off:
http://www.legendaryautointeriors.comWe would love to see some pics!