If you don't have a blower or compressor then wiping it down is better than nothing. Recommend microfiber towels so you won't scratch the finish.
Put it in a bag of rice.
Just sell it. I see what you did as motorcycle abuse and you should be ashamed. I got a guy down the street that has a bike and it sits in his driveway all the time. He never spends any time with it. Never plays with it. AZ sun beating down on it, rain, dust storms, it's exposed to everything. I need to call the Motorcycle Protection Services on him one of these days.