Webley did a 3-9x40 Gold; think it was a Jap Hakko budget. Its what I have on mine, and rather good. Require reparallaxing, and only just managed it. Webley didn't buy scopes in often, and even the above might be a bit late.
Any 80's Tasco, Kassnar, Optima, or Nikko would do.
Apel did a FWB, Omega specific cross pin arrester mount. Rocking horse doodar.