I would be interested in:
318069-10 (PAL 8375 Agnus)
390563-04 (Super DMAC)
390541-07 (Ramsey)
390538-03 (Amber)
390539-11 (Buster)
If you have any of these PM me.
Edit: Ah, never mind, you've only got "normal" chips that rarely go wrong and never need upgrading :-)