It is much safer to go from the 650 to the 600 (maybe 50 more horsepower) to the ZX-10R (another maybe 50 horsepower). It will also save you money, especially if you buy a used bike and sell it later for about what you paid for it.
The ZX-10R will probably be very high for insurance until you are about 26 years old.
“Banking institutions have banished precious metals and substituted a more fluctuating and unsafe medium; they have withdrawn capital from useful improvements and employments to nourish idleness for the few, who prefer demoralizing pursuits to labors useful to the whole; the peace of the whole is endangered by evils more easily to be deplored than remedied." by Thomas Jefferson,1810 (edited)