Hi Tone,
Regarding your question about my wet sumping device,
the gas tap was "rescued" from my son -in -laws toolbox (a freebie) he's in the heating/plumbing business,but I imagine they can be purchased in most plumbing stores,
The tap is fitted to the flow side, and yes i have used the origional elbow and fitting nut ,on the oil tank.
I also use the device to stop the engine after a spin,when i'm putting the bike in the shed.(checking that the device is still working)
hope this answers your questions.
best regards ...Ronnierockets...