1/144 USS Montana (ACR-13) SS/Turret plans Draft 3 (Final)

here ya go! this, along with my prior PDF upload of the hull plans will give you a 1st Gen Montana.

I can't model well enough to do the cage mast, so if you want a Gen 2, then delete the foremast and bridge, and slap down a cage mast just aft of the conning tower.

the bridge was the same shape, just reduced from a partially-enclosed structure to a platform.

reference the thread on Armored cruiser plans for a snapshot of the Gen 2

https://rcwarshipcombat.com/threads/armored-cruiser-plans-and-sources.446857/page-2#post-538616