$300 for a parts car is a good price if it has the parts you need. You can sell the leftover parts for more than you paid for the whole car and be money ahead.
fFxing your auto tranny would cost alot more than that. Just be aware that you will need to spend another $250-$300 for a new clutch and related parts to go with the transmission and shift linkage parts you salvage from the donor car.
Forget trying to salvage the windshield, it's glued in and you'll break it trying to get it out. Around here you can get a brand new windshield installed for less than $150.






