I bought two houses and moved them onto a lot I had purchased. It took a year and a half to locate the correct style houses to fit the neighborhood. It took a year and a half to complete the job, because I did all the work myself, and I worked on it in between my jobs. In other words I did not continuously work on the project as I had to earn money to pay for it. I did not have an option at the time, as I had only been in the country for 3 years and had not racked up enough established time to be considered for a loan. I paid cash for everything.
The remodel was complete, from re wiring, re plumbing to a new roof. Everything but the wood that made the shell was redone.