I wouldn’t go bigger than 7" with the mini trucks, too narrow. Also as others mentioned it’s very tight for 6374 motors and the precision of the hangers are not the best which is bad for motor mounts.
The carver deck is very flexy which is comfy for carving but not the best for higher speed.
If you want to jump (or ride off-road) then the enclosure should be on top (which is bad if you ride without bindings).
Or in other words, when I read your posts it seems neither the carver deck nor the mini trucks are the right choice.
I ride a carver deck with mini trucks for commuting and like it on the streets. For offroad I have a regular MTB and for jumping another light weight MTB. All boards are very different.
If I were you I probably would build 2x 2WD boards instead of 1 4WD, one for the streets and one for off-road/jumping. It’s difficult to have everything in one board.