How long is a piece of string? I have seen conversions time going from 8-12 months to 2 years (like mine).. Several factors do dictate the timeframe of a conversion..

The extension of the conversion, the manpower skills and time availability and the cashflow disponibility..

Please note that you can see online several Youtube “conversions” where all the original windows are still there and just a bit of paint and some home furniture (not even fixed) has been used.. These conversions do take only a few weeks, but I wouldn’t really call or classify those as conversion, but more an experiment.. Some of those videos are there just to advertise products for sale and make a quick bucks.. You can’t really take those conversion seriously.. Spend sometime on the road, and you will quickly realise that you never see them, and there are several reasons of why..

Mind you, they are still funny videos to watch..

I would be tempted to say that a good “one man real conversion”, should/would not take less than 12 months when working a bit (4 to 6 hours) every day, performed in a shed and including both skin and inside layout construction.. To give a comparison, most professional conversion workshop do required an average of 4 months (with several people) for a full converted coach to an RV..

Like when building a home and perhaps a bit more, there are several trades involved in a conversion.. Metal work including welding, plumbing, glazing, painting, flooring, carpeting, sewing, mechanical, electrical and off course carpentry and a lot of it, unless you are planning to use already made cabinets.. The more you know about these trades, the easier and quicker it gets..