PuzzleMaze - Carcassone
I stuck with the original, and mixed in all the good parts that came after, while discarding the cruft, and ended up with a long and baroque game, but one that is recognizable as the original game, albeit with quite a bit of spice.
Here it is, FWIW, my own bizarre Carcassone house rules.
The next step is to create some tiles. I have some good ideas, but not the time. I will post them here and in the rules when I get to it.