What's wrong with just loading your clips and tossing them into a gen-yew-wine .30-calibre steel ammo box as used on our old Brownings? Ten bucks at Princess Auto. Not as macho, but just as period.
Check around gun shows. There was a big batch of .30-'06 (allright, John, .30 Ball M2) came in (supposedly from 'Nam) several years ago, Lake City 1969 stuff. It all was packed in bandoleers, 8 clips to a bandoleer. The ammo all got shot off, most of the clips were salvaged, some of the brass and bandoleers shows up from time to time, not terribly expensive at all. Good brass, too.