Well, first bit of advice is to avoid going on Craigslist while drunk.
Get hold of a factory maintenance manual. Just go buy one... it's money well spent.
Drain and flush all fluids -- fuel, coolant, brake, and of course blinker.
Assume the carbs will need a good cleaning at minimum if not a rebuild.
Assume that the battery is toast.
Examine all rubber parts for cracking and hardening. That includes tires.
Check the power bands.