I sent them a response last night and I think the price for a FB print scared them off a bit. I was going to do it for $120 + delivery unmounted - I know, probably under selling, but I wanted to try and get the sale/experience. I also don't think that they necessarily wanted a 'fine art' print, more a poster to go on the wall.
I actually hadn't considered printing it on RC optically (I did offer to have it machine printed from a scan, which they were more keen on), which I might actually do now for the same price as the machine print.
Anyhow, for your reference, this is the picture in question, which is a scan of the 8x10 I did: