Something leaking from #5 exhaust gasket

[overshot]

Damn I guess I'm gonna have to do an in frame or buy a new truck.
But guess they're always some kind of issue, even with new trucks.
What is the expected down time for to do an inframe.
Ive heard 10 days, 5 weeks, 2 months and so on.
The longer it takes the more it cost, just sayin.