LW, MW, HW and whatever you want for the last teams.Check the NAR AI mod thread (not the releases one) for how can you participate.
I am not sure that stacking 3 pistons is realistic, and don't think 3 pistons really make for a good MW poker.
I am not complaining about the chassis :PIt's not bad and good enough for NAR AI but really should be faster.
NPCFs are the best motors in the game, but you can use normals as well for this.
How good is the wedge? Is it invertible?