One bad cylinder you say?
The car for 400?? Why even ask? U can 1) use it as a parts car and buy one in better shape(huge luxury to someone who's trying to do a big build) 2) part it out! U can get 400 just from the seats easily! Then part out the little things here and there and buy another one with money to spare for wheels or what not. Just my 2¢. Either way, I'd buy it if it's 400.