Chris,  additional questions on my 77 restoration project.

1.  Painting is nearly done, soon I’ll be ready to lift the engine out temporarily and install the shaft from clutch to transmission.  The clutch housing is on the engine and the clutch is lined up inside that to receive the shaft. 
I assume I should put the shaft into the clutch housing, install the felt washer and retainer, and maneuver the engine, using my hoist, to get that shaft slipped into the coupling in front of the transmission.
But, I do have a belt pulley gearbox there so it looks tricky.  As I recall the rear engine mounts tend to catch on the frame.  Any advice here, or do I just have to work with it till it fits in?

2.  It had a thermostat with the number 160 which assume means 160 degrees.   My dealer had only one stamped 180.   Is this ok?  The new one is shaped different and has a different gasket but I think it will fit….

3.  I replaced the mechanical lift with a hydraulic unit.  It’s a group 3 unit and I think in good shape since I got it from a guy who has several very nice restored Olivers.   But, it only has the one lever.   What would be involved in adding the capability for operating a second cylinder?  Do I need to check with someone like Larry Harsin for used parts?  I probably won't work on this during the current year but wonder what is involved.

Thanks very much for any help.  
Tom Murray