this might be a crazy, left field idea, but maybe spending 10 minutes to try out the two things that have been sugested here would be better than
as long as the car will last 4-6 more months
that'* just me though. and it also means that when you get ready to sell this car, and move on to the gp, the next person won't be out cold. there'* a fair chance that this is something that can be fixed easily. and if you fix it now, you save lots of repair costs down the road.
or, you might find out that it'* far more serious. which would also be a good thing. knowing that you're driving on a bad tranny is far better than driving around, not caring, and having a bad tranny.
just my .02... take it for what you will.