gooberobu,
where in a general consensus are you located? It would help out letting us know so we can find a place for you. Yet I believe you neuro would know better...
But please before you start plasmapheresis...ask your doctor about IVIG. Plasmapheresis is used much more for emergency situations, and I used up all of my plasmapheresis (now as my immune system is so low, i cannot do it- per my neuro). IVIG takes longer....yes. but not really becasue you usually only do a few days versus over two weeks.
I found plasmapheresis to work wonderfully when I was so weak i couldnt eat/breathe/chew on my own...but i personally think it shoudl be saved for if you ever need to have it done during a crisis..but im no neuro, just a doctor in training

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ive had it 60+ times, so if you do have any questions, please, do no hesitate to ask!