To rebuild or not to rebuild (stock trans??)

[Turbogt]

My car is a 92 with 220k on the clock and the trans was rebuilt around a 100k mile ago. I called up a trans place and they quoted me $1000-1500 to reuild the stock trans if I pull it my self (which I plan to do). Right now the car goes great in the forward gears but has no reverse.

I have been searching for the past couple days on swaping in the outback trans and 4.44/4.11 gear train, but am worried about the gas mileage/extra wear on the car.

I have read of some people getting better mileage with the 4.44, is this true?

How do the 4.11 hold up? My neighbor has a 97 impreza auto awd with a blown motor, will this trans hold/bolt up behind the 3.3?

Are the newer 4EAT's a better trans i.e. out of a 97' outback? Is it possiable to just swap in the trans and not the new gear ratios?

It is going to be a daily driver and not raced, but I have to have the swap/rebuild said and done before next semester starts (beginning of Jan), so what do you guys thing?
I know there are a lot of threads out there and I have been searching, but I need to get this thing going soon, thanks for your help guys.