I bought a full length stock set, stock, handguard, metal, off gunbroker a couple years back.  I too have a Stomperud barreled action that a member here gave me.  Like you, I hate the thought of cutting the full length stock, so it's been the "when I get around to it" pile for awhile now.  They do come up on gunbroker from time to time.  Mine is serial #1034.  I can see the 7 of the 1897 Steyr stamp which was ground off.  Fellow that gave it to me said his dad bought the barreled action in the 60s, for $10.