I'm probably too late but I've only just found this forum.
I grow lilies from seed (from RHS Lily Group). Mainly trumpet lilies, many different crosses( all beautiful ). I've bulbils left over from my repotting, and spare bulbs. I also grow Fritillarias and, would be interested in exchanging for Fritillaria seed. Ideally chinease Frits, but would consider other unusual choice species.