Digital BW, The Print

I could point you to a different RIP (Windows only), but you would need 
to learn how it works, as well as make CMYK profiles with the black 
generation set to give you the type of print that you want. It's all 
going to come down to the amount of time you have left. I can do the 
profiles (and turn them around really quickly), and am fairly familiar 
with this RIP in trial mode (14 days no watermarks or other 
limitations). Running in the standard print mode it would all be down 
to the profile.

The RIP I mention is one of my finalists in the RIP wars, really just 
one other to check at this point.

If the Windows only isn't an issue, I can email you the info to get the 
demo, and could email the profile targets  (if needed) to you when I 
get home from work. The developer claims 100+ feet limit, though I 
haven't tried anything larger than 12x18 inches. It prints from its 
internal layout program, so no PhotoShop limits on pixel count.