Glad it's useful to you! Some others that are more expert with the Fazer will chip in with other info I'm sure. They do have the old R1 blue spot calipers on the front yeah, excellent brakes if you keep them well maintained which is pretty easy. Check out a guy on youtube called "delboys garage" for any brake maintenance vids his stuff is usually excellent although he can ramble a bit and is very "old school".
The FZS 1000 rear caliper is a mod that a fair few people have done on here, it replaces the standard caliper for a blue spot caliper like we have on the front. I did it because my old one kept siezing and I thought aesthetically it looked a lot nicer. There is definitely more power and feel in the FZS 1000 rear caliper now that I have got used to it, but the old one when working correctly was plenty powerful and lets be honest the front brakes are where the real braking is done. I would say that your main priorities would be:
Make sure pitting on your forks isn't too serious, check it isn't in the fork travel area as it could rip up your seals.
Check all bearings are good - So front wheel, rear wheel, swing arm, headstock etc.
May as well do a full service, it is reasonably cheap and easy. So new oil (motorcycle specific 10 40), oil filter, oil drain plug and washer, coolant change as likely not been done for a while (rad flush while you're there and refill expansion tank under seat)
Check the condition of all your spark plugs as this will indicate how your bike is running, consensus on here is the Fazer runs a bit rich from the factory so could be a tad sooty.
Make sure there is no exhaust leak, if there is you can use Gun Gum but it doesn't last forever so may need a new link pipe to downpipe gasket.
I would definitely whack a K&N air filter in if there isn't one already.
Balance carbs and check TPS sensor. Also check rubber inlets from engine to carbs for splits and cracks.
Make sure battery is good.
That would be a good start