After speaking to various people and feedback on this forum, I was convinced that I would have to go through the grinders with my application.
I applied mid January and had an assessment on 1st May. when I received my letter yesterday from DWP, I was taken by surprise. enhanced rate for daily living ands standard rate for mobility, all for three years.
One less thing to worry about, as I am now being referred to the Scottish Transplant Unit for assessment