You can replace both motor mounts without removing anything at all. New mounts stock or Brown Dog in good old rubber.
When tightening the long motor mount bolts be sure to torque to spec. If you over tighten you will pull the ears of the mount to contact the rubber center sleeve and have bad vibes.
The exhaust manifold gasket should be done in conjunction with drivers side motor mount. Usually the exhaust manifold on the 2.5L is not cracked but check to make sure. Get a good Felpro gasket one single piece crush gasket.
The broken studs suck but can be done with the head still installed. Or take it to a machinist and watch. If you don't have any experience you may need the machinist or remove the head to have it done for you.
Sent from underneath my Jeep
89YJ 2.5L TBI, AX-5, NP231 SYE, Ford 8.8, Yukon Grizzly, Tom Woods Shaft, 33" BFG T/As, 4" lift, Warn VR10000s.
AF Jeep Club Tail #184