Doing the hatch involves exactly NOTHING. It's already done, except for installing a pilot if you so desire.

The 40% helmet head pilot we sell sits inside the hatch rails, a few dabs of silicone glue to hold it in place and it looks like this.

The panel is pre-installed. IMAC here we come.

Hooking up the ignition involved simply installing a switch in the pre-cut hole and hooking up to the power extension that I ran up the left side of the fuse.

I use these little plastic gizmos called cable stands, you can get them at any electronics store. Buy a bag of them, they are self adhesive and stick to wood very well. Then just use a zip-tie to hold cables in place and out of the way.

I use a choke servo instead of a kill switch, this is a great way to kill the engine in case the throttle linkage fails.

BTW with these switches I just use the litel hex head servo screws that I use for everything, I throw away the little mounting screws and backing plate that come with the switch.