both year 2008? what are the mileage?

for CBR, engine top service will burn your pocket...
for KIPS, normal use 2T and petrol will burn pocket slowly...

If anything damaged, like headlamp, signal, coverset etc... Kawasaki replacement easier to find, compared to Honda. Price about the same.

Regular maintenance, in terms of time and money, KIPS need more attention, but the riding more satisfying. 200-220kmh top speed stock. Highway economy speed at ~140kmh, or topgear at ~7000rpm before KIPS valve opens. CBR topspeed 150-160 kmh? Cruises easily at 130kmh.

Risk: KIPS higher. The bike, brake clamps, rims, carburetors attracts unwanted attractions...

My personal choice, KIPS, despite every cons...