oil cooler could fit. tank/seat is intensive but workable. projector lights could have possibilities. swingarm swap would take some doing but would be interesting (and could make the wheels an easier swap). master cylinders might be worth the effort depending on what your running now. Im not 100% but I think the 749/999 triples have a steeper (more aggressive) angle than the m900.
the real question is why arent you throwing the 900 motor in the 749 frame?
Motor swap would be neat.....but way to much $$$$$ for me
I would have sub out all the work!!
My brakes are great currently, upgraded Brembo masters, new Galfer lines & Galfer rotors.