if you look up the classic tgc store, there you can find a set of plywood training ground walls, created by Kravenwolf.
Purchased those to, cuz of the same reason - to create different areas to test gameplay mechanics of my game.
This video shows how they look in fpsc classic, you wouldnt need much to set them up to work in reloaded, just the .fpe files need to be changed.
http://j0linar.blogspot.co.at/
PC SPECS: Windows 8 Pro 64-bit, Intel I7-3630QM 4.8GHz CPU, Nvidia GTX 675M - 2048MB GPU, 16GB DDR3 RAM