I would advocate allowing a EUR-GA-IR or a EUR-GA-IMCR (whats in a name) to fly:
VFR on top all over Europe (one standard for al the airspace)
low airways (up to FL245?) at VFR levels (+500) (one standard for all the airspace)
flying the procedures (GPS/VOR/NDB/ILS) with the current IMCR restrictions (one standard for all the airspace).
All the above with a speed restriction of 2oo knots (to prevent the mini jet owners to get away with this level)
Anyone wanting lower minima or flying the IFR levels in the airways to obtain the same standard as the other pilots flying there.
I tend to agree with Pace that the current reluctance to discuss the IMCR is not actually helping the case of a european wide achievable non-pro IR. Whilst i understand the fear, I think a strong COMBINED lobby of all GA representations is the way forward, but I have no idea if this is achievable.