The wagon, of course, would be cool.
But... 1960 Bel Air, I would love to build one of those. Just something esoteric about the W heads. Love 'em. I would build a 409 block with a 4" crank out to 476ci; aluminum heads, high rise 2x4 intake converted to port EFI, six speed manual. Art Morrison chassis...
http://www.artmorrison.com/59-64chev.php
http://www.409chevyperformance.com/H...rformance.html