RE: secure batt and rx?
I agree with MinnFlyer. I use velcro for holding that stuff down. You can go to walmart, go to the sewing section, and they have all kinds of the stuff there. I usually this NON sticky back stuff, you can get like 3/4" yard of it for like $1. Then CA it to where it needs to go. You can also run it going with the fuse, just play with it to see where it will work best.