ffffffuuuuuuuuuuuckkkk...

The stentilels are still ruining the view though -_- (they look well drawn and all Con but totally out of place and fake at that distance).
Couldn't you just model them as an animated part of the BSP way at the back of the level? (then you'd have proper lighting and they'd look like they're actually 3D and everything, you could even get away with low-res textures at that distance).

Same goes for high-charity (but just scrap it )