for extra $850 ; a good buy? We have a neighbor who has a 2000 taurus for sale, it is in extremely great shape & well taken care of but it does need a new transmission, the man has given us the number for a transmission mechanic who he'd planned to have rebuild the tranny & he wants $850 to rebuild which comes with a 6 month warranty. I REALLY need a vehicle & dont have a lot of cash, this seems like a good buy but im afraid spending so much on a car I cant test drive... he said will stand behind everything but the transmission & that he doesnt want to mess with putting the tranny in which is why hes selling it so cheap. Are these trouble prone vehicles or would this be a good investment??