Wanted: 2 Barrel carburetor for a 318

Looking for a real cheap 2 barrel carburetor for a 1970 318 that is in GOOD WORKING condition. I am not looking for a core or a one that needs a rebuild.

I rebuilt the carb that I have now, it ran great for a little while and now is leaking out the top gaskets and can't get it to stop, so I think it has a further issue than known.

I have a set of RMS spring relocation boxes that I am willing to trade as long as the carburetor is in GOOD WORKING CONDITION.
PM me or respond here. Thanks