WTB Thompson M1A1 20 round magazine shell/body

[Helder22]

I'm looking to buy a Thompson M1A1 mag shell/body.
Just like one of these (doesn't have to be the same brand or anything, just the same type)

http://www.gunbroker.com/Auction/ViewItem.aspx?Item=185487639

Its for a movie prop so I don't need the internals (spring/follower) or even the bottom cover (but it would be nice to have the bottom).
I'm in the bay area BTW
Thanks in advance.

[Helder22]

Still looking
Bump