I know someone who took a Handi-Rifle on trade despite it having that ATI stock because the original stock came with it. It was a while ago, I'll check whether he still has the ATI stock. Not a popular item as far as I can tell, so hopefully this work out for both of you.
that would be awesome I wasn't real impressed at first but after carrying it in the bush all day I thought it would reduce the weight. If I get one the wood stock would be available for trade or sale.