Update to my earlier replies in case it's useful:
First treatment cost £2450. Assuming the same for each cycle, that's a little bit under £15000. Onco's charges take it slightly over.
MP has received replies from: (paraphrased)
Local trust - No
NHS England - No, but under review (i.e. no longer on-hold) following CHAARTED publication and STAMPEDE.
Sec of State for Health - Nothing to stop Trust funding if it wishes.
Oh and I've been mentioned in Hansard :) Sec of State looking into it...