Welcome, with this good weather I would spend your time having as many test rides as you can, it will show you the different types and their pros and cons, also it will put a BIG smile on your face.
If you are only going to use the bike in France I would try out as many different bikes over here to find what type suits you, then when in France find a dealer over there that can supply, service and maintain the bike you like.
DO NOT RUSH IT.
Take your time and try as many models and types you can.
Before you invest a large amount of money!
Check it out you may find a model half the cost and just spend an extra £10 or 20 on a different saddle or tyres?
Hi if your existing bike is fine to do you for other times? would your employer of this problem site be prepared to supply a bike plastic shed to store your bike in or go 50/50 ?
He might even put an electrical supply to it?
I can see a time when electric power helium balloons could carry frieght or cruise passengers as speed is not a problem and no need of a large area of land for a runway.
lift consumes the power in aircraft witch is reduced in balloon flight.
welcome it looks a good bike?
But I would strongly suggest you take a bit of time and try a few different types out.
A step through and throttle control is worth thinking about more so in the future.
Your future mobility awaits and enjoy.