stripped star bolt - code3 pulley, help!
hi, i'm a first-time poster, long-time lurker. this forum has helped me learn a lot of new things, and i got a code3 sc pulley after you guys had so much positive feedback. thing is, i've run into one teensy little problem... the tensioner bolt is rounded-off. see, me and my buddy tried to install this thing, but we made some critical errors in judgment... we had too many beers before we started, we did this at night, we didn't let the car cool down, and we had too many beers after. so, i wake up the next day with a decent hangover, and, much to my surprise, i still have the stock pulley on my car. and the bolt for the tensioner (marked as an e11 in the instructions) is rounded off, badly. i will man up to this and take complete blame, although i do vaguely remember my buddy going to town on that tensioner the night before. either way, it seems like i'm up a creek without a paddle, from my point of view.
what i now ask of the forum, is what my options are. i'm most hellbent on getting that pulley on, and while i'm assuming i'll have to fix that rounded-off star bolt, it's not necessary to me at the moment. i have basic hand tools, and i've wrenched on my car before, so ideas are welcome. if it comes down to taking it in to a shop, which shop should i take it to (chrysler dealer, mercedes dealer, independent mercedes mechanic, or independent general mechanic)? also, would anyone happen to know the part number for that tensioner bolt (and ballpark price)? it doesn't seem too hard to fix (famous last words), but i may be mistaken.
anyways, this forum is a great resource for these cars, and thanks for any help i get!