I had a look at snowcliff. It has wayyy too many custom bricks. I'd see about converting it but it'd take longer than it would to throw up a quick testing map. It would be worth it though.
Conan, if you have the time, you and me should convert it to get rid of a few of the custom bricks.
the download should include all the addons you need. If I recall correctly it only requires fence, octos (custom extracted taken from 1random), barbed wire, zone bricks, and half bricks. all but octos are on rtb but the download should include the addons themselves already. and if you didn't realize T+T is stacked in there but since you're using your own weapons you can disable them all anyways, cutting down datablocks a lot.
I can't play BL for multiple reasons (one because its kinda like a drug to me and i'm currently sober for the length of 1 month) but the required stuff for the build is significantly less than requirements for the whole TDM setup. As for conversion, just load it up with only the brick addons included in the save .zip (defaults + what's listed above) and that should give you the build. Is the use of custom bricks really that big of an issue?