Welcome to The Forum!
I don't have a second generation carburetor, but do you still have yours? If you do have it it may just need rebuilding which is a relatively simple process. It seems complex until you get into it. I'm sure some have those here, but it would be best if you could fix the one you've got, (if you've got one). Please never throw away an "old" carburetor! They are getting more and more rare.
Perhaps you even live close to a member that can assist you with the rebuild. In what area of the country do you live?