I have also worked in the service department of a major mobile home manufacturer where I learned how the homes are constructed and scheduled technicians responding to hundreds of requests for warranty  work from new homeowners. 

In my experience, most mobile home repair men (I never encountered a woman) are opinionated, under capitalized, well meaning, and self taught, with little formal education.  They learn the trade by helping someone else.   There are few books on the subject and the content of the available books tends to be out of date because of rapid advances in materials and methods.  Many repair decisions are based on bad, wrong and miss-leading information.  

Besides the mobile home related websites I am also interested in investments and old home renovation. Home renovation is much like mobile home repair, but allows me to research and study how they did things a long time ago.  It is a pleasure to work with real wood and carefully crafted products. 

I have collected other mobile home related domains for future development.  The names and ideas for their use are listed below:

A1mh.com: A1 Mobile homes. 
aaamobilehomes.com: AAA Mobile Homes
gb98.com: The is the name for the general contractors license in New Mexico
HandymanHomes.com: This could be a doctor for site built homes
Owner-Financing.com: Mobile home finance, especially older homes is an area with a great need but lots of risk