Hi Stan,
My friend and fellow DMC club member Tom "McFly" Sedor with have his 100% temporary and reversible Time Machine conversion at DCS 2016 and he will be giving a presentation.
If you want to "hold off" on some of your purchases of parts until you see the presentation (and the Q&A session afterward), you may have a lot more of your questions answered.
While Tom's Time machine conversion is not 100% screen accurate, I'm sure its 88% or better and completely reversible in a few hours (half day?), with no interior or external holes
drilled in any panels. The only non-reversible modifications were done, were to a spare engine cover that I supplied to Tom, to attach the vents and the plutonium chamber base.
No glass was removed (rear glass and both rear quarter glass remain installed). The quarter glass does cause a little glare in direct sunlight, but otherwise, it is not much of an issue.
Night photo taken at the Adler Planetarium on Chicago's Lake Front, with the skyline in the background.
Attachment 41697
Thanks,
Rich W.