Welcome aboard N O S, where on planet earth do you call home ?
Environmental conditions may have a large impact on the bike, even though it was in dry storage, if you reside in a damp, or coastal area .
Tires and tubes require replacement, regardless on how good they appear .
Front brake system needs to gone through cleaned and inspected replace seals if necessary, and at the least, replace the three rubber brake lines .
Fuel tank, if isn't already empty, needs to be drained and cleaned .
As mentioned the carbs need to be completely gone through, and at the very least bit, all of the seals, gaskets and floats need replacing, along with a thorough cleaning .
Probably as good a time as any to remove the transmission, and clean and lube the transmission input splines as well as the mating splines on the clutch disc .
While you have the transmission off, go a little further, and replace the rear main seal, and the oil pump cover o-ring .
Good chance the final drive output shaft seal is going to be leaking, replace the rear brake cam o-rings .
Sounds a bit overwhelming doesn't it ?
Believe it or not, the work is not as intimidating as it sounds .