reenactor or trader of ww2 stuffs?
endies has these us army ones http://www.endicotts.co.uk/componen...lly-set-u-s-s-s-lid-pan--1980-detail?Itemid=0 and these german ones http://www.endicotts.co.uk/componen...-e-german-aluminium-grey-1278-detail?Itemid=0. And epic have both kinds too http://www.epicmilitaria.com/search.php?xSearch=mess+tins&submit=Search.
I have a US one but I expect the postage involved in a swap would be more expensive than buying one locally.