Congrats on getting it all done. That drive shaft is short!
If you have any more photos of your transmission mount , after you drilled it and when you said it was real flimsy, I would love to see them. This part of my build is probably at least a couple of months away so I figured I would ask you now while the whole process is fresh in your mind.
Also, how did you go about figuring out how to modify the mount - presumably you had the engine and trans on the hoist and part way installed?
All of this is new to me, so the description of the basic steps would help me plenty. I am going to have help but they will only be available intermittently, so I want to be as prepared as I can to make progress when I have people over helping.