Oil Change Diaster

[SMK Shoe]

Well, a good friend and my old Battery Commander has the same year Porsche as mine, 2000 Base ( he's the reason I bought mine). Well, we did a oil change on his today, and when he put the drain plug back, he didn't use the metal washer and TORQUED it to death with a Allen wrench. The plug is a cheap Chinese aluminum with a 8mm hex head. When I realized he didn't use the washer, we decided to drain the oil in a clean tub to reuse and use the washer. Guess what is stripped and useless. So, is it possible to remove the plug with a easy out. I didn't want to get to destructive until we had all the needed parts to fix if it comes to that. He is ordering a new oil pan, gasket maker, drain plug and washer. I do not think it will be much of a job dropping the pan and replacing everything that needs to be fixed. Am I being overly optimistic or is it a pretty easy job. Any hints or " try this" would be appreciated.