I've always put off doing an IR because my aircraft hasn't enough equipment for airways, but maybe the G5 would be an economical fix?
It would give me a second "altimeter" and an attractive new attitude indicator (my old horizon is rather noisy and being elderly, occasionally doesn't erect
). So I think under the new relaxed equipment requirements, I might have enough to fly airways - King 155 loc/gs, G5, mode S, 8.33 installed (plus handheld 8.33), garmin 496 as panel back-up (and to give "dme").
What does the informed team think? Could I use the airways?