Without any doubt, members on Birdforum would strongly advise you to please physically try out binoculars if you can, before making a purchase.
You can do as much research on the internet, seek other people's thoughts and make a shortlist but you really need to try out a pair for yourself and see how they perform both optically and personally.
Good luck with your endeavours........and, good birding.
Pat ps. I think the nearest to you is RSPB Loch Leven