Thanks for all the ideas here folks. Much appreciated. I was taking time to gussy up my Five ready for sale two days ago and had pretty much the train of thought put by Stevemtb and shinsplints.
I do enjoy my Five (even if it is ain't no wagon wheeler). But I just won't get the use out of my Swift anymore,its just too rigid.
So my plan now is to flog the Swift and use the cash to pimp my five (1x10, better brakes and a reverb) and keep her going for a while. Familiar bike makes sense in so many ways. Then take stock at the 6 month mark.
Thanks for the words of support regarding the injury. It was always always going to be a long road ( getting ready for op number 6) but it'll all come good. I'm thrashing myself on my road bike working on the fitness so when I'm back on the trails it won't be my legs or lungs that hold me back!