it would definatly be cheaper and easier to do, not to mention how much easier it is to find one to start with. personally, i like being able to count the amount of Dusters in this area on one hand....
i had a chance to buy a 68 Camaro once. it was all done up for prostreet. completely tubbed out, 9" rear, blue with white stripes. the guy (close friend of the family) offered it to me for $5000, and said i could pay for it over the next few years(i was 17). he said i couldnt have the 500ci BBC that was in it, but he would build me a nice smallblock for it.
it wouldve been a cool car to have, but i think my grandfather would've disowned me for going Chevy, hehehehe.