Honestly, I'd reconsider getting a v6. It'd be easier to swallow if you were going from a 96-98 GT to a 01+ v6, but a 5 liter cobra is going to be night and day, and not in a good way.
What's your budget after selling the cobra? You can probably find an SN95 GT or possibly a 99-00 GT for what you would pay for a 01+ v6 if you play your cards right.
12 Black GT500 SVT PP l VMP TVS l JLT123 l O/R X l 28x11.50Rx15 M/T Street R's l BMR Suspension l Recaros
03 Sonic Blue 3.8 / 17 Magnetic Fusion Sport 2.7 EB