Sorry - I may not have explained it correctly. In its first incarnation Im after a tank that will carry the most fuel and that it seems is a one piece that incorporates the under seat storage area. Once ive got it done and if there is enough interest id consider making twins for those with the single high exhausts. But 1st its the single max range unit.
Deadly - seat/tail light unit is a 2nd piece and will have limited storage capacity (think O2 cylinders, small levers, tool bag, etc).
But the bash plate must be done 1st. and there was even a sacraficial plate used over the OEM's that was a disposable unit after each day - how cool.