I think the Redcat crawler stuff is one thing they always seemed to do really good from what I have seen on here. Why that never translated to their bashers baffles me.
No way! That trash can is killer! Like a little stash you can take with you. Put a driver in the truck. If they ask to search it, just tell them if the driver says ok, then yeah.
Do yourself a favor and put some graphite or dry lube on the motor module slides. That thing can be a real pain to get to move. There's no good place to get leverage on it.
I had some puncture proof tires I tried on my BMX bike when I was a kid. They were super heavy, and harder to pedal. But reading the reviews on those foams they seem hit and miss.
These look interesting as well. Extra thick where it matters, yet still uses an inner tube.