Mike, did you ever receive an answer? I can't, for love or money, locate anything regarding pricing on their site. Their order form even has a blank to populate.
Their claim regarding the 311 foam blocks, "2000ºF, white hot, parts can be immersed in water with out cracking.", sounds awesome tough. As a material resource for work, I've just got to have some to trial. I can envision a forge for our tool fab shop....