You need a Novarossi CT06 plug which replaced the discontinued one.
You can still find them if you hunt.
It’s a medium plug so I would try an OS RP6 which is a lot easier to find.
I used a tire truer when I raced on road using foam tires to keep them flat and uniform in size.
I also used it on new rubber tires, but only to give them a light scuffing.
To control the smell of gas, just store the rig in one of those large contractor grade disposal bags that you can get at any home improvement stores. They are extremely thick and will easily fit a 5th scale. Stuff it in and fold the end over under the rig and you are good to go. It’s how I...
I never used squids.
All my batts used Deans so that’s not an issue.
When I did charge other stuff like a transmitter or receiver pack, I made an adapter to the deans.
Granted you need a good soldering iron, good solder and some skills using the solder iron which is easy with minimal practice.