i think your offering the "wrong kind" of side work. thats a nasty job. i have needed to change mine for a long time now, havent yet, and im a mechanic!
I can tell you where not to go. I had a pan and rear seal amongst other work done and 4k miles, 5 months later the oil pan gasket is leaking along with the rear main worse than when I brought it in. Not an hour ago I just got back from a stealership in litchfield Ct and they want 1200.00 to replace the rear main and new gasket. I was informed that the 12 month 12k mile warantee that came with the job doesn't cover seals or gaskets. Dealer gonna cost 2 grand and if it isn't done right, you're going to hold your hand on your *** to get it re-done.
If you are forced to have a stealership do it, get it in writing if it fails they will fix it, no charge, if they won't, find a stealership that will. It leaves me with putting up a chain hoist and having a go at it, good luck.