I reused yhe 22r mounts both frame and engine.
I cut the mounts off the frame with a pladma, flush. I bolted them to the 3rz. I set the 3rz in the frame to see how much I needed to narrow the mounts. I think I took out .75 on each side. I set it back in there, while.hanging from the cherry picker with a little weight on it. And put it exactly where I wanted it. And tacked it in. Then I bolted up my trans, and case, and got that all lined up being the engine mounts were tacked they allowed flex. Then I tacked all that in. Checked clearances and welded it in.
My engine is almost an entire inch more forward than all others I've seen. And I've put over 4k miles on it now and it hasn't missed a beat.