Found a cheap Tip Boxster S- Advice

[husker boxster]

You don't mention if the car is local. Have you actually seen it? This sounds like one of the "specials" on the internet. Be very wary if the seller wants $$$ sent via Western Union.

Good luck. Hope it works out for you. If it really is a proper deal, buy it and then decide if you like the Tip or not. At that price you shouldn't take a hit if you decide you really need a manual (unless it needs a pile of work - but that's what the PPI is for).