The idle problem fixed itself
I fitted the induction kit:
Left it on for a few days as it was quite fun, but removed it in the end so I'm back to standard.
Ordered some more 312mm carriers so I hope these turn up
Few things on my list over the coming months:
New rear lights
Suspension
Things are gradually moving but still restricted money-wise unbtil I go fulltime at work in May. I'll fit the 312mm front brakes when the carriers turn up and still need to replace my driver side door seal with the replacement I have, and fix my broken wing mirror.