I've had good success through the years by parking the unit in a visible place with a good for sale sign stating a price which would probably be on the low side(my purpose is to sell it, not make money). Craigslist would be OK with caution but also try it's something like rv for sale on line or rv.net. Have the buyer sign a statement of what he is paying, date and stating he is buying it "as is" and seller will bear no responsibility for any problems once it's signed and money taken. Include any potential safety issues such as tires being worn etc.