Dale,
Yes, I did have to drill holes in the X-frame for the rear O/D mount bolts. I did use the rocker shaft studs to lift the motor, but can understand your concern for lifting the combined engine and transmission that way. That was also one of the reasons I installed the motor and transmission separately. If you decide not to install the engine and transmission as a unit, I can provide you with photos of the home made rigging I used. PM me anytime with questions. I am "taking my time" with this restoration and you may very well pass me up progress wise in the future, so I may have to contact you with questions at that point.
Griz