No need to prostrate yourself mate, I'm but a human
Gotta add that I had well over 200 Multi hours, of which around 100 IFR, when I started my conversion. Hope that puts it a bit more into perspective. If you're fresh out of training with 200 odd hours maybe the 30h figure is a bit more realistic, at least to budget for.
One more thing: the UK IR test isn't that dreadful as everbody says... they want to see whether you're safe AND KNOW WHAT YOU'RE DOING! Even the +-5° NDB guidline for NDB work is just that - a guideline. Many errors come into play etc. My IR test flight was way from perfect, I was outside those limits a few times, but immediately tried to fix it without overreacting, and kept talking about what I was doing. Got a first time pass and a 'well done' from the examiner.