The 706mkII has 70cm, doesn't it? I know there is a 706 with UHF. I wouldn't be too concerned with it if an Elmer offers something like that at a fair price, I'd go for it. My first HF radio was an Alinco DX-70TH that had neither 2m or 70cm. You can always upgrade or keep it for a back up.
I know the call sign N0AMY, although can't say I've ever eyeball QSO'd with him AFAIK.
QRP and more so QRP-L (which is one watt or less) are more about just making contacts than conversations. That is part of the reason I try to steer new hams away from the FT-817 and QRP in general, it can be really frustrating. It's geeky and technical fun, but you don't ragchew and you have to be patient.
"Why does the U.S. care which flag will be hoisted on a small piece of land thousands of miles away?" -- Ron Paul