Should be fine if it hasnt seen too much weather. Apart from oil changes and filters.. new plugs, new tyres.
There'd be a few things to check, like the earth on the back of the gear box is clean and earthing correctly. Change the relays.
Lube all the moving parts and bearings like the ignition switch, levers, uni joints, swingarm bearings, headstock bearing, new fork oil and seals and probably rechroming the stauncions . New injectors or remove and clean. Same for the fuel pump - get it spinning by air before you apply power and burn out a seized pump. Check the oil pump, no chips in the teeth and spins ok. Spray oil everywhere in the engine and heads.
Check and adjust valves tolerances.
When you have checked everything, spin the engine up on the starter only (with kill switch on) a few times for about 10 secs each time and for a total of minute Or until the oil light goes out. This would generally happen after about 40secs but if it hasn't primed the oil system by 60secs, you should see if any oil is circulating before continuing.
If all good, then start the bike. Ride..