expect this to increase to around £130 ish over 5 years
I now know what you do for a living: a financial adviser
I want your email address, because I've got a couple of hundred quid which I want to invest for a ~100% return over 5 years.
On the "IFR" bit, you need legit IFR capability only if flying on the UK IMCR or the full IR. For "informal enroute IFR" you don't need IFR certification; you just need proper equipment and instrument flight capability personally.