Marty, sorry about the issue with the motor pod. I have a spare motor pod if you need it.
As far as the clearance issues, I am fine with racers putting whatever spacers they want on the front body posts, but, as I said it is unnecessary if you use the front outboard grub screws on the chassis. Screwing these inward raises the front of the body above the chassis by 2mm or more and you can adjust it as needed without having to fiddle with spacers.
And Mark, I am not sure what front wheels you are using, but the ones we spec’d were the 15 X 8 (Part #1508215A) wheels. I measure 13.6 mm at the wheel lip and 15.93 mm over the rib.