Not the same build but I think @Sender built a Lacroix with street wheels a while back and I am not sure but if I remember correctly he used have used some surfrodz trucks.
There used to be some trampa trucks that you could either mount facing forward or backward to go from street to dirt. But I don’t know if they still make those.
I ride my trampa with thanes when I’m feeling frisky. Turns my super carvy snowboard feel into a fucking Ferrari. If you use the mini spring you can fit two 6374 if they are true to that size. If not the atb hangar adds an extra four inches. As for the mount i would check out @IDEA. Cool thing about the trampa system is being able to swap out dampas in the springs and the spring position it’s self to alter the stiffness/carviness of the ride. I can go from carvy at setup to stiff racer in about ten mins. Wheel swap belt swap spring adjustment. It’s an awesome build.