Hopefully, you bagged/tagged everything when you took it apart, so you'll know what screw/bolt/clip goes where...that's the biggest hurdle in any long term resto.
I would suggest the wiring go in first, of course, and then the HVAC/dash.
Install the heat barrier/carpeting from the rear compartment area first(it keeps from getting the front carpet messy).
Measure twice, cut once!
Good to hear the project is finally starting to come together. Should be ready for summertime next year, eh?
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Joel Adams
C3VR Lifetime Member #56
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"