Yes it has a mobile home frame and axles. CJ7jakfitch and I own the trailer. Pulls great behind my dually or behind his F250. Oh yeah and welcome to the darkside Ron.
The only thing with the mobile home frame is when you build something 25 to 30 feet long you have to double the outer rails. The outside of the mobile home in my opinion is not strong enough over that long a distance. So if you want a 25 footer get a 50ft mobile home frame. Also the wheels are not DOT approved so be ready to fork out $450 on some DOT approved trailer tires. Just make sure you get some good rims off the mobile home.
I can't build something like that. For one I don't have a welder and 2 my wife would kill me if I brought a trailer that long home as a project. I would love to just find one some day and buy it. I know of one guy in this town who has one but I doubt he will sell it. Would be ideal for the me to have since I could pull it behind the Excursion.