Very Important Decision To be made!!

I have a 97 GT that is bought and payed for. Over the seven years she has made me a true mustang and ford nut. If you could ever truly love a material possesion, that's how I feel. The stang is mostly stock except for a mac pro-chamber,magnaflow cat-back and some suspension mods. My ultimate goal is to have a 300-400 RWHP rock solid motor. Getting there is my dillema. Considering the fact that I am married with children and buying a home is the first "family" priority building my motor up ,ie- pi heads,intake,cams,fuel,ignition,traction,forced induction would take alot of money and time. The work would have to be done little by little and the labor costs would kill me , not to mention all the testing and tuning. My brillant idea lately is to skip all that, save my pennies for an 03 cobra motor and have an instant Beast! Am I crazy?- Please Help.

Hello? outthere. I could really use some opinions people.

Thanks for the feedback guys. Ive always thought it would be cool to hand pick the parts that will make up a monster motor. I know a regular pi headswap wont cut it for me, so I was thinkin either Patriot Performance Stage II, VT, or Fox Lake heads. Whats up mike, long time no see or hear. Your GT is also the bomb and she sounds awesome. I'll be at the Victor Ford show this sunday July 18 in Wauconda IL, 9AM-1. The show is FREE and is loaded with the hottest stangs in the area. Call me if you want to cruise up there 773-919-0555.