I've tried them, I always get more and larger holes than I have with aluminum foil. But I've never been accused of having a delicate touch.

Well, if it is the old ALICE pouch, about 3"x3"x7"... sorry, about 7.5x7.5x17.5cm. So it would be tight, you might get enough wiggle room but I'd be surprised. Just barely too small.

As I recall, you guys had a pouch that held three FAL magazines as part of your LBE. If you could find one of those in a surplus store, it should work with the tin in question. Baring that, if you were still thinking MilSurp, look for a clone of our newer canteen cover.

An update....I tried the small loaf pans, and with a bit of space management, everything fits inside the pan. The pan fits inside the pouch with plenty of room left over. Thanks for the great ideas.