Get one Dimi! You’ve been saying how you want to improve your health and I think a walking desk set-up could be a fantastic way to do that - if it’s actually comfortable enough to work with.
My standing desk has just arrived and I’ll carry on looking for a treadmill, I quite like the functionality of the folding one where it adjusts speed depending on where/how you walk (more pressure on the front increases speed, more on the back decreases it) tho I wonder how practical that might be in use.