Sitting 10 years? Brake system is likely shot, seals,hoses, MC, wheel cylinder seals..... running gear seals dried up...fuel system/carb gummed u.Id do a pull the plugs, squirt in a bit of diesel or light oil, turn it over by the key if it will ,if you know the engine isnt locked up that is. Change the oil and see if it will run to start. Have somebody turn the wheel back and forth while you lay on the ground in front looking at the steering linkage looking for loose parts and slop. Might try a quick drive if you have brakes but be cautious. That will get you started with a , how much money do I wanna dump into this thing.