Well, no not whole interiors but I've repainted plenty of panels with the stuff. I've used the products for years. It works great and as designed... Just follow the directions. I paraphrased the directions a little... but honestly its pretty much that easy. When I custom mold things into factory...
You should get a regular circuit breaker. Like this: http://www.amazon.com/STINGER-SGP901001-Circuit-Breaker-100/dp/B00INR9MMO/ref=sr_1_cc_2?s=aps&ie=UTF8&qid=1412287750&sr=1-2-catcorr&keywords=stinger+100a+circuit+breaker
I use the Marine version of that for myself. Like this...
If you want to bundle your wires together use this trick:
Put them in the end of a drill, tie-wrap them down tight and while holding them pulled tight.... pull the trigger... instant braided wires. Then get some braided covering and its looks like factory.. or better.