I think you may want to bow out of this conversation or at least just stay back and read.
You’re talking out of your ass in this conversation with ZERO experience with either car.
$12,000 for a 36k mile motor, with a t56 tranny. so lets even be generous and say the t56 is worth $3000 with 36k on it… 9k for a motor wow, mod motors arent as cheap as you think.
http://cgi.ebay.com/ebaymotors/03-to-04-Mustang-Cobra-4-6-SC-engine-and-6-speed-trans_W0QQcmdZViewItemQQcategoryZ33615QQihZ011QQitemZ320016525051QQrdZ1QQsspagenameZWD1V
I’ve been on both sides, have a good day.