The fruits of my weekend.
After much trial fitting and head scratching, by Jove! I think I've got it. Engine mounts that is. There wasn't enough room to use the FB or FC stock pads so I improvised with polyurethane captured mounts originally intended for use in rear suspension lower swing arms.
engine mounts 3 by
Kevin Frank, on Flickr
engine mounts 2 by
Kevin Frank, on Flickr
I will extend the front mounting plate over to each and bolt it to the top of each polyurethane mount. There's not a lot of give in this setup so engine placement is going to have to be pretty exact as far as engine angle vs. pinion angle before I weld it up. I used the bolt on approach because if I had simply welded the front plate to the mounts interference from the tabs would have made it nearly impossible to pull the engine without removing the front plate from the engine.