Steve,
Thanks for the idea. I considered two hockey pucks. On under each bolt hole in the transmission tailhousing. My concern at this point is that any through bolt setup is going to only approximate the isolation/freedom of movement you get with a true transmission mount. I think I'm going to pull the crossmember and modify it so a stock mount will work. I don't want a cobbled together solution so I'm just going to have to do it right.
No need to thank me for any of my suggestions, just let me know what works. If you recall I modified a stock x member and I would like to change it so I'm basically trying to help you to save me some work to figure out what works..😀