Fuselage rebuild/mods

[flyerkodi]

I am rebuilding my j-3 and it's currently in a jig. I know these questions have been ask but need a refresher.
-while fuselage is bare, what are preferred mods/safety improvements.
- upgrading to c85-12f, it's currently on my -11 with a starter.
Currently mods are
Engine upgrade
Left wing aux tank
Pa-18 left slider window
Grove brakes
Only battery to power starter.
Thanks for your input

Drew

 

[dnnewman]

 

[dnnewman]

 

[huston marlowe]

 

[flyerkodi]

 

[dnnewman]

 

[43-491]

 

[flyerkodi]

 

[JohnsonRyan]

 

[bob turner]