Brent,
I had a real nice full page write-up on this for you, but forgot to login first and lost it, so here's the short version:
Two oil pans - no. 1: upper aluminum pan about 2 1/2 to 3 feet long. no. 2: lower oil pan that has the drain plug in it. No 2 would be a breeze to repair, just remove, clean surface, re-apply FIPG and bolt back on.
As landtank mentioned, no. 1 is a whole other ballgame. Requires unbolting the engine from the mounts and jacking up some to get the pan out. As your mom used to ask before you went to the bathroom - "little job or big job". This is definitely a number 2.
You don't have to remove the transmission to repair either of these. You only have to remove the transmission to replace the rear main. If he's quoting 7 hours, I might take him up on that and tell him to replace the rear main and the reseal the rear pan arch while he's in there.
The following is my .02: If it's just seeping, leave it be. Someone else here could probably tell whether this is waiting on a desaster, be there's more than one of here riding around with a rear main seeping. If replacing the valve cover gasket will eliminate some or most of your consumption, then you might go ahead and get that replaced. But on the rear main: you can buy a lot of oil for that $1000 bill to fix it.

Rookie2