Hi Bill,
Resicast, Compo Boxes and Biscuit Tins.
https://armorama.kitmaker.net/review/3256Pat McGrath review then some time ago. Don't know of anyone else doing a set, I think a few biscuit tins got issued by one of the manufacturers as part of kit stowage but can't remember who.
Same detail with the 105mm ammo, I believe it's still available, not sure about the bulk load though, check the Resicast site.
Cheers
Al