Sorry - tread got moved so far back for some reason I did not see your reply...
The carbs I am talking about is Mikuni TM36 (sorry - not 38, my mistake) flatslides with accelerator pump.
The model exactly is TM36-B76, but in fact any 2 mikunis TM36 with accelerator pump will do - you can pair them yourself.
Interesting news about USD KLX forks....you mean they go on together with tripple tree? If this is the case I have to have long think about it! :)
Oops, sorry - forgot....
Actually, any flatslides Keihin or Mikuni (including HSR mikunis if they ever come in 36) with acc. pump will do, but what I know for sure that TM36 have very much suitable size to fit right on DR800. Unfortunately I only managed to have them in hands to look at for 10 minutes, not to buy (price too steep for me). The TM36s look exactly like TM33s, here is manual
Anyway, your fuel consumption will be worse with those carbs but "ooomph" will be better.