MRP paints don't need a clear coat prior to decals going on since nearly all of them are semi-gloss with a smooth finish. They are also unaffected by decal solvents...even Solvaset doesn't stain or damage them. But, short of revamping your entire paint inventory, MRP makes clear lacquers in 4 different sheens that are also unaffected by decal solvents.
Every decal on this F-16B went directly onto MRP paint and they all were given 3 applications of MicroSol, followed by another couple of applications of Solvaset. No staining, and I just let the little bit of excess evaporate on its own.