Completely stock oil injection system, oil. Motor is completely stock from throttle body to coils, recoil cord to clutch cover except that the stock head chamber was recut and replaced and the clutch spring and weights are changed. Regular spark plugs are used but with a slightly tighter gap due to the turbo application.
Tanks last me all day of hard riding and had about 1/4 full when I got back. Did some 70 mile mountain days which left stock m's with about a gallon sloshing in the bottom. Fuel range to me is a non-issue, you will be sore before you run out of fuel on a good day of mountain riding. They are tee'd together with a manifold and draw together to feed the converter. Even if one was empty and the other full the pressure would drop slightly in the empty one allowing the liquid to draw from the full one automatically.
Refill was easy anywhere, I kept a few forklift tanks and a hose with fittings to transfer the fuel. That equipment is for sale to but not for cheap, I built a propane turbocharged pick-up that I use it for as well. I can tell you what parts you need to buy and where to get them from to build a transfer hose, about $75 roughly worth of parts.
Please read the auction, more details in there.