I am at the start of building a T4 TC. The mushroom bowl I see is one of the tracks that may run a touring class in the winter. As a new,bie I'm a bit lost at what would be a starting reference for motor,esc pinion spur and tires. I assume the bowl runs 17.5 blinky. Can you be a reference for me or advise of another member I could talk to? Thanks, Steve