I've got a few maps laying around collecting dust, might upload pictures of them later.
Essentially, what I have is:
-GF Maps (Various sizes)
-Linebattle maps (most are semi-small in size and artilleri hasn't been taken into account when making the map, but that's easily changeable)
-Others, I have a select few other maps that are free to use IMO.
Contact me on steam if you want any of the maps.
Cheers