Wanted - right side float bowl for a '72 bs38

[fullercameron]

I've got a broken nipple on the float bowl of my right side carburetor. Haven't been able to find a replacement for the part and the bike wants to leak a little gas out of the overflow if I park on too much of an angle - no way to attach a tube to the nipple because the elbow is broken off. Thought I'd better replace the float bowl before I light this thing on fire.

Anybody out there have a spare they might be willing to part with?

I'm in St Louis, Mo