Grumpy E,
Yes, you can get a walnut stock from them! Just remember to order the Topper Junior Classic, walnut forearm to fit the contour of your Pardner Barrel. The barrel contours are different between the Pardner and TDC. I hope this info is of help to you.
Froghunter
PS: Welcome to the forum and good luck with your Pardner, This is a Great Place to Be and very helpful, with lots of info!