I have a Goodman 3.5Ton outdoor unit still available. It's been left with lines unattached to an evaporator coil and without freon for the past year and do not exactly know what to expect of it's condition.

To save some dollars I'd like to be able to reuse it in the new house for another year or two if possible.

The upstairs is 4Ton and the downstairs rec area is 2.5 ton. I'd like to buy only one outdoor unit for now but prefer to use the new outdoor unit for the upstairs where we spend the majority of our time.