wanted perf carburetor 17mm or larger used?

Im trying to cheap out on a carb without getting a crappy one
if anyone has a used one around they would be willing to sell

I am making the intake so a PHBG or SHA or Mikuni whatever
I can work out the tuning no problem
take care
JAK

they have decent mikuni clones on ebay cheap
I have an 18mm one on my china girl which runs great
there is a 20mm on ebay for $34 shipped I may go with that one if I cant find a used carb or whatever
the kit looks nice papa but Im super broke at the moment .....
this is the mountain bike one as it is now sorta


thanks for your help guys
JAK