Hi dirtydog, apologies for the late response. Been busy working metal into different shapes and came up with this...
https://www.youtube.com/watch?v=xUQm...&feature=share
It's a v4 four stroke nitro engine that I made from scratch. Runs well and sounds awesome in person.
I've finished it and I'm back to giving the patrol some much needed love. Currently rebuilding a tb42e as mine is leaking coolant from the rear of the engine and it has 430000km and don't want to fix it again...
I used sikaflex to hold the carpet to the roof. I also used large sections of plywood and propped up against the carpet using timber. The sikaflex allowed me to move the carpet without it sticking and the plywood pressed against it left it nice and smooth.
The carpet on the pillars is glued on using yellow contact adhesive. The carpet is stretchy and easily moldable.