The 26 pumper carbs are not very much fun. They don't tune well. In fact, they are almost impossible to tune for some reason. You would need all four bowls from a regular set. If the bike were mine, I would consider another type set.
wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
Too many bikes to list!
how much do you think it would cost, is it worth it, and what type would you suggest? thinking of just putting it for sale as is and not dealing with it.