Since the original Toyota Land Cruiser engine was a virtual clone of a stovebolt, that doesn't surprise me. Those parts are getting pretty scarce and expensive, however, since far fewer of them were produced than 235's.
Hmmmmm- - - -that 2F is an interesting engine- - - -4.2 Liters (256 cubic inches) and brand new (not rebuilt) carburetors on Ebay are less than $100.00. They're progressive linkage 2-barrels with a manual choke and vacuum operated secondary barrels. That sounds like an excellent option as a replacement carb for a stovebolt with an intake manifold modified to accept a single 2-barrel.
Jerry