The left side has offsetting tabs that bolt together, so another option would be to cut out a section at both places and weld in the tabs that would bolt together.
That's what I was thinkin', making it very similar to the clutch side.
I have a bar of Titanium that was left over from a job at work that would certainly hold up, just gotta see what the possibilities of that being welded to the frame are.
And if that's not doable, I'd probably go with stainless steel pieces. I could even get the entire subframe part, with the bend, made from stainless tubing. or maybe even solid bar stock.
Right now it's just something I was thinking about. I haven't even ordered a stator, or tested the R/R yet, so I'm not in a hurry. With the sub 30º temps we've been having, it looks like I'll have plenty of time now.
The one thing that concerned me most was if the frame might twist if it's cut.
Thanks for the thoughts on this folks
If anyone has anything else to add, feel free.