A swap would be unlikely. What are the chances that a mobile homeowner in Torrance wants to move to Vegas at the same time that you want to move to Torrance. Then you would have to figure out the difference in values and deal with that.
I agree with Dennis, just sell yours and buy one in Torrance.
I believe you want to do a straight exchange, your mobile home in Las Vegas for one in Torrance. I am sorry to say it is probably very unlikely that you will be able to accomplish that. Finding someone with a home you would be interested in who will also be interested in yours in a pretty hard thing to do. Investigate agents who sell mobile homes in your area and ask them about the process for selling your home. The managers of your park will also know agents who do that kind of thing. Once your home is sold in Las Vegas you can come to Torrance and check out your options here. Good Luck!