That company is good. But are are some others to consider.
http://www.nrauto.com/sub_index.asp?makeid=Porsche&spage=Parts
This one which is one of our web site sponsors
http://www.fiberwerks.com/986_996.htm
And last, is this one which is where I bought mine from
http://www.precisionporsche.com/boxkit.html