@mondaytosunday great to have grades in hand so one less thing to be concerned about. Have you been to any universities to look around yet? If so have you visited any of the ones listed on your sixth form head’s recommendations?
In terms of the MS she will be allowed a fridge in her room in any university she studies at and students with medical conditions are prioritised in allocations in all universities including Durham to ensure rooms are suitable and ground floor. This includes the ability to remain in halls/college in years 2 and 3 in the case of Durham and I also believe Bath and Exeter. Cambridge obviously is in college for all three years anyway.
She can apply for DSA - disabled students allowance (for physical disabilities, chronic conditions and learning disabilities like dyslexia) and this provides any equipment and software she may need or a printer so she doesn’t need to walk to a library to print things (conserving energy). This DSA support can stretch to paying the difference between a large and a smaller room to allow for a comfortable chair in a college room if that is better for her condition over sitting on the bed or an en-suite etc; in addition they will pay for taxis it the walking back and forth to lectures from halls or college was too fatigue inducing. Each person is assessed individually so it’s difficult to confirm what you’d get but it’s a very positive process.
Things to consider probably relate to the intensity of the course and how that may impact negatively on the control of the MS. Obviously MS can come in several different types and each persons presentation is unique but avoiding relapsing is important. Cambridge terms are intense and short with longer holidays - you and your daughter might feel that is better to get longer breaks but would the intense study and long days be too much re fatigue etc? Only you and your daughter know this. Other unis would be less intense as terms and work is more spread out so Durham etc might be more suitable.
Cambridge is far flatter and with the exception of a couple of colleges very compact. Exeter and Durham more hilly and spread out which might be tiring. Reducing walking by using transport can help and Durhams bus service is cheap £1 all day which would overcome this possible hurdle.
My DD looked at all the unis you mention and we visited them all. All have strong train links into London and we live near to Cambridge so travel home is either to Peterborough or in and out of London. It is far by car but so was Exeter. ( Please note some of Exeter’s courses are on their Falmouth campus so make sure you check where sociology is based as that would be super far away.)
My DD has loved Durham and it hasn’t disappointed. She chose a self catered option over catered and supermarket shopping can be delivered but catered colleges at Durham and Cambridge maybe a bigger draw to reduce fatigue.
My DD in on a science course but has found lecturers and the profs very engaging and enthusiastic! She loves the additional wildcard subject option for year 1 and she chose a geography module but others chose languages, economics or archeology.
In terms of visiting when it’s not possible to do an open day. We visited unis a couple of times across the years with all the DCs away from the open day as we have a close family member who was very unwell meaning we missed days.
I supported my DC to contact department heads at several unis to ask if they could support us in seeing the department outside of any open day - Durham for science, Royal Holloway and Exeter were ones approached for different DCs and all were super helpful once they knew circumstances and got a senior staff member to give a personal department tour for 30mins to an hour and answer the DC questions.
Colleges at Durham often have porters who will if asked give you a college and room tour inside. Durham also do campus tours outside of open day dates if you look on the website.
I hope this helps a little - please ask away about Durham or any uni - I’d visit a few and I’m sure she’ll fall in love with 1 or 2 from that great list or come up with another fab one of her own.