Inexpensive or most cost effective European thru hike

Hi all,
I'm dying to go on a thru hike in Europe this summer but my expenses have risen recently so I'm trying to be a little more cost conscious.

Places I'm open to: Spain, France, Portugal, Italy, the UK

Another constraint is that sadly, I only have 2 weeks, probably 10 to do the actual hiking.

I'd like to avoid camping.

Any advice would be greatly appreciated!