Found it leaking yesterday while at my buddy's. Pressure washed the whole block to find out where the leak was coming from and definitely rear main seal. What else is good to replace when I get in there? Clutch is only 25k miles old...

Is this is pretty substantial job? Any ideas how long it will take an experience mechanic to do?

It will take as long as it takes for an experienced mechanic to do a clutch job plus a few more minutes to disassemble the flywheel, pressure plate, clutch assembly and then remove the rear main seal housing to replace it.

You shouldn't pay much more than what a clutch job costs.

Ok, thanks for the reply!