Just to answer my own question posed on the previous page....does a lifetime of long haul prevent or jeopardise your treatment with RT? The answer is no. The Oncologist looked at my intake and likened it to living in Cornwall versus Scotland for most of my life.
I have now started the HT/RT route and am researching the use of SABR radio applications and also the use of rectal spacers.
Finally someone will get to do to me what a lot of FO's could only dream of....