Sorry to see you here....nevertheless.
Why would you pay for an MRI? Once I was diagnosed... my experience with the NHS has been very prompt (as It should have been)...MRI,CT and Bone scans all done within 2-3 months of diagnosis. That is why we pay taxes for!
If you are found to have PC.....then it will be a long road ahead.
Read as much as you can about PC, treatments, diets etc......and remain POSITIVE!