For those following along on Farkleit's engineering adventure, here is what the bulkhead looks like fitted, with a barb tail inside the bulkhead.
Location is the key with the FJR. The tank bottom is really flat and it is all very tight for space under there. Even the fuel injection return line can get in the way...
The pen scribbles were made while the tank was still fitted to the bike just to mark out some clear space as seen when peeking under the tank.