[Perfectlap]

That sounds a little steep. Some of the Southern California forum members have had this done for $1000. I guess it depends on your zip code's supply of competent labor.
It's definitely DIY but will take you a few weekends. Wayne Dempsey's 101 Projects for Your Porsche Boxster lists step by step. You could film your own DIY, burn to CD and sell it on eBay and Amazon for $20. You'd make back the cost of your top!