If you're so enamored with raw power and 0-60 times, why did you buy a Boxster in the first place? You said you like the looks and the mid-engine balance but didn't you know the Boxster is not a hot rod? Even after test driving one? The Boxster was underpowered in 98 and still is in 07. That's not what it's about.
If you turn your Boxster into a Basturd do you think you'll still have the good looks and balance? Shoehorning a 600hp straight six into the back will result in an awkward looking thing that performs like a late-80's 911 Turbo.
You're reluctant to spend $13 or $25K on a "simple" Porsche engine swap, yet you think putting an inexpensive engine in the Boxster won't cost you? I'm guessing it would run $50K in engineering and fabrication to make a Basturd. If you're doing the work yourself that cost would be less, considering your labor as "free". However, based on your line of questions, I'm assuming you're not in this line of work as your profession or hobby. Unless you have a
real good friend or relative in the business, it'll cost you.
When you're done creating the Basturd and you grow tired of it, who's going to want to buy it from you? Not a Porsche purist. You could probably consider the number of people wanting a Basturd a niche market. Maybe the market could be counted on 1 hand (with a couple of digits sawed off for good measure).
Don't turn your Boxster into some freak show that travels the country in World Of Wheels and only zit-faced 13 yr olds will think is cool. Sell the Boxster if you're not happy with it and buy what makes you happy. It will be worth way more now in it's current condition than after it becomes a Basturd.
JMHO
