Congrats Scott...one hell of an effort. Climate seems to have a lot to do with headliners going. Guess they all go at some point tho. The headliner in my 90 735iL in the medium climate where I live in Michigan still looks pretty good but the sunroof switch cover fabric is getting loose :-)...so thinking I may be able to pull the material away from it...not hard...and then just reglue it. What brand of spray on adhesive did you use? Still a bit foggy as to how you got the finger marks out by your technique.
Heck of a good job,
George