Hi Keith,
I would echo what the others have said here regarding the age gap - my wife is 30 years younger than me and it is not a problem to either of us.
Meet your lady first and spend some time together, then come back to the UK and think things through carefully.
If you are still in love, plan to go back.
Don't rush so fast, fast can be ok, but not this fast
There have been many bad stories, she could be a wonderful lady but be careful
One male forum member went to meet his mahal and found out it was a man when he landed.
There have been many stories about scammmers too. I am not saying she is one but you need to be 100% sure.
Keep some property in the UK if you can, you never know about the future and any health scares and it is a nightmare trying to come back to live in the UK again if you have closed everything down.
All the best.