Re: 16inch to 17 inch wheel
I had a cbr600 wheel wheel on my 94 fireblade. Also used an NC30 front wheel (when getting tyres etc etc). Dead easy - but you must get the right wheel. Also you will need to use your spacers (off the blade).
I used the CBR900 rotors, the CBR600 rotors and the CBR400 rotors interchangeably - depending on which wheel I was using.
I believe that the rolling radius if the 16" front is not far off that of the 17" - due a lot in part to the high tyre wall on the 130/60 front compared to the 120/70. In any event -I did not drop the forks and liked the way the blade handled. This will, inevitably, be a matter of opinion and feel....determined by your personal riding style.
I can provide Pics of the wheel if necessary (PM me) - because the wheels are not all the same.
Finally - if you are getting a secondhand wheel - I would suggest changing the bearings, valves etc as a matter of course..... And inspecting the wheel carefully when doing so.....
Bladeracer is correct - there are lots of threads re a front wheel swap on here, and that the 98/99 blades are different and require a different approach.