Shouldn’t this be in Help? I mean you are just asking for help…
The hexagon system would be easy, you just need 114 (19 spaces x 6 different terrain) of these ⬣, each with a different color to represent the fields, mountains, etc. Then you would put one of each type on top of each other, and then create a Randomizer that puts 3 of each, with the exception of the desert, which has 1.
It would be easy to create the different hexs, as we could use rocks for the mountains and bushs for the forests.
But the problem would be creating the dice, getting the resources, building and placing the roads and cities, and randomizing the board.