A little update, I got a flex shaft at Sears.. it doesn't fit very good, and I have to hold it on, but I like that as a safety feature that if something happens to me, that it falls off, and nothing is going to attack me. Well, with that flex shaft, I can really get in there, and it works wonders. I did the rear header lip in 20 minutes. I was taking it easy, because I didn't want to overload anything, and I am still testing it'* limits, but all is great in rotary tool land. I just thought i'd share that.
'89 SSE - GX3 -190k, 155k on body - Back for another ride.