Leftover AGS/RHS/Chilterns Seeds to Swap

I've just had my annual seedbox sortout. I have dozens of packets of small amounts of seeds, some old (1996), some new, mainly unusual alpines and perennials, most obtained from society distributions, swaps with other enthusiasts or Chiltern Seeds.

To give you an idea of what I have and what I'm looking for, they include

Astilbe taquetii Superba
Baptisia australis
Brimeura amethystina
Campanula Burghaltii
Celmisia hookeri
Cephalaria gigantea
Dianthus petreus
Epilobium fleischeri
Incarvillea mairei v. alba
Iris unguicularis
Meconopsis horridula
Roscoea scillifolia

but there are sometimes very few seeds left in the packet.

I'd like to exchange them for other people's specialised oddments, preferably in 'job lots' of 20 packets.

If you have lots of bits and pieces of unusual/rarish perennial seeds to swap, please get in touch.

I'm not looking for common seeds, or annuals, veggies or SAEs for these.