Estern Front - Poles 20mm question.

[Asienieboje]

Have any of you have an idea who is doing the Polish Army from the Estern Front (I'm talking about 1st Polish Army under the Soviet command). I know that in past days they had been made by Stonewall Figures or it's sister company Combat Miniatures, but not right now (I've checked their website and cannot find them any more). I'm looking for the soldiers in summer uniforms just like those on the picture:

At least I can made them from any Soviet figures (just to do some converting).
Thank you for your help.