You can buy an electric hoist for your car( clearance permitting ) from Bryg Aid ( I think that's the spelling) which will save you having to break your scooter down ( if you have a suitable car).
Every year there is www.mobilityroadshow.co.uk/ where you go along and all the scooters and all the dealers are there. I'm not sure if there's another one later in the year. If not the best thing is to go to a RICA endorsed shop . RICA do mystery surveys on all the stores they accredit so you won't be bullied or ripped off.
I'm a larger lady and currently have a Pride Victory which I bought in the USA. This is my 3rd one in 10 years, I trade them in as I would my car. Never had a moments problem . You can but them in the UK too but there are lots of other makes too. A good shop will assess you so you get the right scooter for you.
Hope some of this helps.
Have you stopped buying papers?
Retiring and living frugally in money from downsizing after years of stress
