Re: Any GM willing to run 'The Caverns of Thracia'
Not fussed about the system. It doesn't even need to be D&D. If sticking to it, I would say that either the more basic versions (D&D, AD&D 1st ed, one of the retro clones...) or the 5th.
Trying to avoid 3,3.5,4 like the plague. IMO, just too cumbersome.