one of my sponsors is
http://catalystracingcomposites.com/they make some landspeed racing specific stuff. here is the turbo upper and their first version of their belly pan. I had to cut it quite a bit to get my 58/12 kit inside of the pan, (sump pump, exhaust, turbo compressor, K&N filter) but the upper was a simple drill and bolt. they have a newer version I just havent fit to my bike yet. deeper, broader and the tail is much larger and flaired. same ease of fitment with the fender, both seat styles I use and the tail section.
they offer 5 styles of tanks for Busas in either glass or CF. all come with as many as 4 3/8" NPT bungs or an intank pump style (OEM).
OEM styleLowered style. 2" narrower, 2" shorter.
So-Low style. flat top. (pictured above) much narrower. fits most plenums without shimming. 2.4 gallon capacity.
NLR Pro Street style. meant for drag racing but know of two landspeed projects using this style. for use with cutdown seat rails only. sits the rider forward an extra 2".
Shootout style. lowered for use with cut seat rails.
here is their bodywork with the old smaller of the two bellypans on it.