yes
yes
hi gshybrid -
yes, I posted those lens reviews of the Mamiya 7 stuff. Glad they were useful! Indeed, the whole kit is worth keeping, the price is so good it would be hard to get that stuff at that price if you later wanted it (if you sold it and wanted it back later). I'd keep it all until you have shot with all the lenses and seen the results. There's not a dog among them.
I am waiting for my processor to warm up right now, and am about to print some from my Mamiya 7 negs. They are just amazingly sharp and contrasty, without peer, I think.
Keep all that stuff, you will be glad you did once you see the results. Sell something else if you have to. If I had to give up all my camera systems but one, the Mamiya 7 is what I would keep.
-Ed