I answered your previous question earlier, and I'm repeating it here since most of it still applies.
As for looking for buyers, start in the mobile home park. Some people want to move up. Some will know other people who are looking for an affordable place to buy. Others will have family--relatives--who they'd like nearby. So, start with the people who are already there and already know the place.
Then geographically spread out a bit, but still look in a radius of perhaps 5 miles.
Use Craigslist. LOTS of people search there.
In some areas of the country, it makes sense to list with a Realtor. In others, it doesn't. But you should check, in any case. Look for those who may specialize in mobile homes. One way to do that is to see which agents already have properties for sale in your park or nearby ones.
Also, consider classified ads in local newspapers. Not big city ones. But if there are some smaller ones (the once-a-week type), put an ad in those.
And now for the advice I already offered about how to market it (which does get into finding buyers):
The secret on a mobile home is terms, not price. A lot of potential buyers won't have all cash or financing lined up. If they do, great. But most won't. So you make it as easy as possible for them. And that often means owner financing.
You can certainly use a Realtor. Just make sure your agent understands that most buyers won't be looking in the MLS for a mobile home, so you have to use other marketing, too. That means a sign in the window. It means a letter or postcard to everyone else in the mobile home park. And it also means Craigslist.
Getting back to terms, figure out what the payments could be on your mobile home. For example, let's say you want to sell it for $15,000. You'd be willing to take just $100 down. So you'd be financing $14,900. Over 5 years, at 9% interest, payments would be $302. Let's say lot rent is $275.
You might run an ad something like: "Only $100 down moves you in to your own home. Owner financing! No bank qualifying! Pay only $302 a month. Lot rent just $275. Qualifies for 10% income tax credit. The American dream of home ownership can be yours today. Call xxx-xxxx."
Points to emphasize (if you want to move it fast): Low down payment. Owner financing. No bank qualifying. Mention the 10% income tax credit. Keep the monthly payment figure (in my example it's $302) separate from the lot rent. Makes it seem less. And price the overall monthly payment figure about 20% (or more) below what a comparable apartment would rent for in the same general area.