Andrew
that knife would be easy to restore, I can't see the buttcap, but I bet it has a brass screw plug in the end. Just unscrew the brass plug and take it all apart, resand the blade ( I normaly take them back to 220 or 320 grit) take it to what ever grit you want, if you want a mirror finsh take it to 1500 or 2000 grit. You can buy leather pieces to replace the handle or you can put a wood handle on it. Clean up the brass and buttcap and reinstall.
Take your time, you can bring alot of life back to that knife.
Dana