I spent some time speaking to Dean Krause last summer at an auto auction. He will speak to you for a long time if he thinks you will buy a car. He is a really nice guy.....
Anyway he said that a very tastefully done car can bring as much and more as a restored original car. By tasteful he meant carb, manifold, headers, period rims etc.... Just like the car you would have built and modified if you had he money back them. They are worth even more if the original parts are still in the trunk.
So in short don't built an outrageous car that only you and one other person would like.
No shag carpeting, jacked up rear, flowered vinyl top, chain steering wheels, tube front axles, fuzzy dashboard....You get the idea. Lets see what other tasteless modifications we can think of...
Gene J
http://albums.photopoint.com/j/View?u=1584519&a=12058180&p=43615717.jpg
66 Coupe/66 Convert/84 GT Turbo/96 coupe
Gene's cars