From the current ASDA's post-doctoral guides, the programs at places like the VA Longbeach and the Lutheran hospital in Brooklyn pay $40k plus a year in stipends.
As far as surgery goes, I'm talking about apicos, hemisections and root amps. That kind of stuff. I observed an associate who recently graduated from Nebraska and he said he only did about 6-8 surgical cases during his residency. I think I would like to have more experience than that before I am the responsible surgeon.
On a side note, I think it is unnecessary for an endodontist to place implants. I don't see the purpose in it. He's not necessarily more competent for it than a periodontist or an oral surgeon and it doesn't pay any more for his time than molar endo would - plus it would shoot an endodontist's overhead way up. Why?