Very best of luck with the interview, I hope it all goes well and you are successful. I had a similar problem when I was made redundant from a job that was well paid with lots of International travel. I decided I wanted to downshift for a better quality of life. I thought convincing local employers I was serious about working long term for about a third of the pay would be close to impossible. In reality most were very understanding and could relate to my wish not to travel so much and get a better work life balance. They were more concerned about employing someone who was honest, could communicate and they could be confident you were going to turn up for work.