I reckon it's all down to availability. Any Fire parts seem to be hard to come by and if you end up using some of the other bits on other machines I say well done. P/F looks in good nick so all the other bits I would consider a bonus. I had a devil of a time a few years ago trying to get a good used FS P/F and ended up with one from Sweden and the guy de-populated it for me for free to save me on freight.My 2c worth.