Having options are good. I basically had all the treatments you are doing or considering, mostly alone, which isn't easy. Are you doing the induction chemo as an in-patient or as an out-patient? Although everyone is different, if you did well managing yourself with induction chemo, doing radiation, either IMRT, and more so with Protons may not be anymore difficult, unless you do chemo with it also, which the attached trial states may be a possibility, and then the toxicities also increase, and dependent on the type. I'm one that found the toxicities from chemo to be worse than radiation, but was still no walk in the park, and just tried to get through each day, that's it. The toxicities from radiation usually begin 10-14 days after starting treament, the worst being the set fee weeks, and after, but you may already have side effects from the chemo, can compound radiation effects.
When I stayed a Hope Lodge some of the patients had a friend or relative stay with them a few days or a week or so at a time, which helped.
IMRT can be done elsewhere, even following MDAndersons treatment plan, if mutually agreeable. One thing to consider is if you need further treatment, one day, hopefully not, being at one of the top CCC already helps since another institution may not want to accept you as a patient, if treated elsewhere. It has happened to me.
http://clinicaltrials.gov/ct2/show/NCT01893307Good luck.
