Sean,
Still in the process of obtaining quotes. The best one I can find so far is around $26,000 made by Rite Boilers. We are in Califronia and it seems to me that it is harder to source, due to less boiler use on the west coast. I have heard of some breweries that have sourced some smaller BTU models (around 400,000 BTU) through homeperfect.com for better prices, but I'm not sure if those would be sufficient boilers.
If you come across something, please share. I'll do the same.
Brandon