I get the standard rate of Mobility PIP, I don't qualify for the enhanced as I can walk a few metres unaided though on a bad day even walking up the stairs in my house to the loo causes me a lot of pain. So a little over £100 a month.
My additional costs include having to drive everywhere (nearest bus stop is about 8-10 x my walking distance without needing to sit for 5 mins) and that needs to be an automatic car which are a) more expensive to buy and insure and b) tend to be thirstier with fuel.
I can't really go many places because longer than about 35-40 minutes on a good day in the car and I not only struggle to get out but can't move for ages and will be in serious pain for hours afterwards. That drops to 30 minutes on a bad day.
The majority of my shopping has to be done on-line, as a walk round the supermarket even with the trolley to lean on can only be done on a good day - supermarket deliveries cost money. As do some other items you get delivered to the home.
I no longer cook properly, as I would have to do it in such short chunks that it would take me hours to prepare a meal e.g. get everything out, rest. Do any prep, rest. Start the cooking, having to be very careful I time things so I'm not standing for more than a few minutes at a time, rest between each stage. Get the crockery etc out, serve and carry it into the other room, rest. So I tend to eat quite a few ready meals - more expensive.
I need a decent desk and very good proper PC chair to tolerate much time at the PC - luckily my employer is very good about disability & got me a good chair for the office tailored for me which cost them well over a grand. Added advantage that I was lucky enough to get a job within the travel distance above that lets me work mostly flexi hours, so if I have a bad morning or the traffic is very bad I can go in late most days & make up the time later. Downside is that the pay is pants.
I also have ADHD which in my case means I can't concentrate working at home so need to drive in every day which costs me a lot more than if I could WFH, but that in itself won't get me any more PIP points