Bibbyman, there is a complete fore end assembly for a Stevens 235 on Ebay. I don't know if this is what you're looking for, but check it out.
https://www.ebay.com/itm/Forend-assembly-for-Stevens-235-Double-Barrel-Shotgun-16Ga/312115211436?hash=item48ab842cac:g:elAAAOSwnbla2hod
Pete