I managed to pick up a 1 to 4 DVD copier on ebay - got it for £53, then it turned out that one of the drives doesn't seem to be working but the read drive and the other three are fine. Still a good deal for the price, but I told the vendor, who promptly gave me a 10% refund. Hopefully I can get another drive for not much more, there seem to be a few reasonably cheap on eBay, though I don't know what the final prices will be.
So the FF CD-ROM (DVD) 8.0 will be happening some time next year if all goes well. This is the label design I'll probably go with, let me know what you think.