To be exact, your claim about the actual MFD being 1m is incorrect, it is 90cm. It is the same as most v2 pre-asph summilux (except those with goggles which focus to .65m) and the 2005-reissue W-Nikkor 35/1,8 -- the UC-Hex is modeled on the w-nikkor. I find the .9m MFD to be a non-issue for about 80% of the time with the way I shoot a 35; as I do like to get close.
OP.: Of the lenses you list, and the limiting factor of your budget, the only leica lens you could hope to get is the v3 summicron. I think it is a great buy, and if you can find one, I recommend you grab it. I have owned the ZM 35/2 and it was a very fine lens, but a part of its signature is to put a gloss on the images. You will like it or you won't -- it is a matter of taste. I didn't like its size for a f2 35, and some have found the ZM-lens build quality suspect, too.