rear main seal leak

[Strategy]

I have a salvage 2.5 e85 with 126k miles.
I haven't had any issues with it for the past year except for a small oil leak that i had fixed. But last week all of the oil drained onto my driveway over night. And the mechanic says i have a rear main seal leak, and its gonna run me $877 to fix.
Worth to fix?

 

[Thrustyjust]

Would have thought it wasnt the rear main seal as they sit above the oil level. For something to siphon all the oil out would be something with a permanent oil supply, such as an oil cooler or similar or a sump crack, unless you live on a drive at 45 degreees plus . Just my thoughts...................

 

[MKZ4000]

I’d make sure it was the RMS first but yes, I’d say worth fixing.