The time has come where I need to consider getting a wheelchair for my mum - it means we could get out and about more, and I could have a bit more exercise by walking and pushing her at the same time! She's not a 'small' lady (she's about 11 and a half stone currently), so a major concern is my ability to push her, especially up any inclines. Where do I start with wheelchairs? Can they be borrowed from somewhere to try, before I spend hundreds (thousands?) of pounds. Are there any that are 'motorised' to help you up hills (a bit like golf trolleys!)? Many thanks.