Galaxy - Not read all of these post so sorry if I repeat stuff. But did notice someone saying the gite market is saturated - agree. The place we stayed in last year was only booked for about 3 months of the year. She emailed me a few weeks ago because they have virtually no bookings so far for the summer - and it was a lovely place!
There was a programme on last week about a couple who ran a camp site in France. There were lots of other comments from those who'd already done it who all seemed to say they'd never do the same thing again. You can make lots of money - we were doing the sums in our head watching - but you are on call 24 hours a day. it he toilets get blocked you have to deal with it now. You may have to run the bar. I think you may see a lot less of your family.
Also, do you have parents here? I know what would put me off moving abroad (yet) is how much my mum would miss my daughter. I don't think I could do that to her. Don't know what your relationship is like with your parents who whether they are fit and able enough to travel to see you a lot.
Good luck if you go.