are you for real?
there's several on the classifieds right now that are sub $200, they're all over ebay and offer up and CL, you can get them at swap meets all day. **** man, i have TWO sitting right here: a superquad with electric choke and a 440 HP2 unit that i'd take peanuts for.
numbers matching, rare TQ's sure, they command big money. but a bread and butter one that'll work for just any old small block? you can get those all day, every day and twice on sunday for the cost of a nice dinner out.