Interest Check: Tunnels and Trolls
Yes, T&T is generally a pretty flexible game. There are only really three character types (Warrior, Wizard, and Rogue) and what each can do is largely based on their attributes and the player's character concept (apart from magic use at least).
Flying Buffalo has a free, bare-bones PDF version of their rules on DriveThru RPG. The PDF of the 5th edition rules is pretty inexpensive.
I'm feeling pretty motivated about setting up this game, so I'll get it launched soon. Keep an eye out in the Player's Wanted forum.