Here is my progress on my 01 SS. I took a 7" Xenarc and molded it into the dash. I also relocated the ASR and Foglight switches. I'm still using the stock monsoon system (sounds awsome for all those haters

).
To keep the stock deck I simply bent back the tab jiggers that originally mounted the deck to the stock location. Then I took it turned it backwards and stuck it back in. Stuck some velcro in to hold it in place and it works awsome. The stock radio bezel fit on without modifing it any further than needed to mount the touchscreen.
I took the spare tire and jack out and mounted my laptop where these items were. With some foam padding and all that happy stuff.
I hope this info inspires some of you other guys. I know those before me certainly inspired me!
Touchscreen
Touchscreen again
(yes there is a gap between the bezel and the touchscreen, I was just making sure everything was going to fit and there was enough room behind the touchscreen housing.)
Frontal
Relocated Switches