Battery Box removal Heng Long Leopard

[FullySemiAutomatic]

These look about right:

https://www.homedepot.com/p/Everbilt...1717/204273996

[keilau]

These look about right:
https://www.homedepot.com/p/Everbilt...1717/204273996

I would prefer the 1/16" thick angle. Easier to cut and drill. Enough strength and cheaper. Most importantly, the 1/8" angle may be difficult to fit.
https://www.homedepot.com/p/Everbilt...1727/204273985

[FullySemiAutomatic]

Thanks!