You can build one too with a samco swede barreled receiver and a stock from Numrich gun parts. The swede barreled receivers were $169 M96 CG and i'm not sure what theyare now. The stocks with all the metal were $52. As a last resort if one can't be found. I would look at gun shows too sometimes there around $200 but not often.
Look at samco, Sarco, Allens Armory and Empirearms too.