Need some advice on the best way to install an ignition.

In process of getting a Rascal 110 together and wanted to see how other guys are installing their ignition modules. This is my first gasser and need advise.

I know that it needs to be isolated from vibration, but what is the best way? Does an ignition get too hot to be rapped totally in foam? There is tons of room in the nose of this plane, but it would be impossible to access the firewall to secure "properly". It's just too dang far to it to reach it. I guess I could cut an access out, but I totally don't want to do that. I had one of the guys from the flying field tell me just to pack it in foam so that it wouldn't move around and I have a piece of "furniture foam" large enough to carve out and pack in the nose so that it wouldn't move, but that is when I thought about the heat thing.

The ignition "pick-up" line is too short to get too far from the inside of the firewall, so the ignition will have to be very close.

Any feedback is welcomed.