I just refinanced my SRT with Baxter Credit Union. My car has 20,000 miles and I bought a warranty from them. I got the Platinum coverage (additional 5 years/75,000 NO DEDUCTIBLE!). The warranty covers everything you can think of (plus they pay for hotel/food/towing if I were to get stranded somewhere with the car) and you can get the car fixed at any shop, which I like a lot since I don't trust dealership. It cost me $1,600. So you might want to check with your banks if you can get warranty from them.

Also, I think it would be easier dealing with the aftermarket parts since I will be taking it to my buddies shop.