So, I headed down to talk to Gary at Steen chassis yesterday -- lots of good retrofit and custom work, and reasonable pricing.  Looks like a full cage will end up being sub $2500, triangulated rear bars, NASCAR style doors.  Should end up being about 2 weeks start to finish . . . which is about a millenia better than most of the other shops I've talked better.

There will probably be a little bit of a problem getting the hoop extended to the frame, but that's only because of where the fuel tanks are.  I'll grab a few pics while the car starts coming apart.