since the bike was parked for some long time I would advise to review brake pads, service calipers, remove all old brake line fluids put new fluids new ring seals,
If I were you I will also check Shock absorber seals and oil levels so they don't run dry and cost even more in future to just revamp.
Use inline feul filter for tank so carbs get neat clean feul and dont get bad on longer run.
main axles or chain ko bhi I hope review ker liya ho ga?