People are selling Minolta Maxxum cameras with great lenses for dirt cheap!
They also sell Minolta primes for less than at ebay. You'lll be able to test them prior paying.
I understand and agree with you about FF camera. I'm moving into same direction, because angle of view granted by FF sensor is something I miss terribly.
I'm in better position, because I own bunch of good old Minolta AF primes + some good Sigma, Tamron old lenses.
I understand that these lenses probably are not up to Zeiss standards, but sofar I was satisfied with photos I'm getting using them + KM 7D.
I don't think Maxxum 7 will give you more then 7000 or HTsi . As long as camera light meeter, shutter are working there are no significant difference between film bodies.
When you'll get A850 any lens will give you FF view and 24-105mm, or 28-135mm Minolta lenses will make you smile again.
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I came back to basics. Make photos, which will be interesting to check after many years.