With the understanding that you prolly don't want to do so, it would be good if you opened up the bottom of the cowl behind the muffler a little. That muffler gets pretty hot and the extra area would vent some of it.

Those Deans connectors become pretty heavy during hard maneuvering. Though they are hard to disconnect, securing the wires a short distance behind them would be a good thing. Leave enough slack to enable "working" the connectors.

You might want to cut off some of that exhaust stack. It won'r effect engine performance either way. The first thing that happens in a nose over is the stack hits the ground and tears out of the muffler. A shorter stack is easier to work with when removing/installing the cowl and is no longer the second thing to hit the ground. The first is the prop....