Convert my '74 or sell it all and buy a '70?

I would convert the 74. I wouldnt put any of the twister specific parts unless necessary. After I was done I would sell all the twister specific parts I didnt use to make some extra money. After that I would pull everything off the leftover cars that are still good, Take whats left over, put it on craigs list, and if it doesnt sell after a month or two, haul it off to the scrap yard for some more money. But I would strip them good. Such as cutting out frame rails if they are still good. The scrapping thing would only be because I had some ugly heap in my yard. Around my shop we got tired of looking at a junkyard and sold as much as we could, scrapped the rest (such as about 5 trucks) and made a place for our "GOOD STUFF"