Noticed that Ace will be producing more 155mm Schneider artillery pieces in 2015. One of them is the early WW2 American version with tyres which will be of use to you.(the other is the 1918 version).

Lend lease examples were also used in North Africa by Commonweath forces so it has a lot of potential.

Dear Arlin,

we're presenting the masters on this website as soon as we have them. The ones you're asking about aren't ready yet.
Best regards,

Strelets

If you can't wait, or need additonal figures, you might want ot check this new Early War Miniatures range in metal:
https://www.facebook.com/media/set/?set=a.868091016571201.1073741900.585343228179316&type=1

Sorry for linking to F'book but the contents is available to everyone. Regards. Pa