Hi CJ
The oil tank came from Lowbrows in the US and has been on the bike for over 4 years now and looks great, was easy to mount under the tray, the tray was made at work to replace the orginal Featherbed tray as it was rusted out, I have all my wiring inside that box and can also fit a small battery if i want to and the underside I have battery elimnator as well as a hidden kill switch for the Joe Hunt maggie, I run very minmaul wiring on my bike only 4 main wires and 1 earth wire which I don't run in with the main wiring and have reasons for doing it this way.
I think I only payed about $150 us for the oiltank, its a round alloy tank and sitting where it sits keeps very cool, I can put my hand on the oil tank without it being hot when riding, I also run a locheed oil cooler all year round and have done so for 38 years, I think thats why I get good milage on my motor.
Ashley