Hi...
First of all many thanx for the pic with the distance of the axles. It will help a lot. I'll also show your truck and trailer to my son, so it's easier to decide for him. It will be a flatbed for his Knight Hauler Longline.
Your truck is an absolute excellent work and I can't await to see it finished. Your idea regarding the backlights is really cool.
Vety cool work, hope to see more...