What about making a (slighly contrastier?) unsharp mask and selectively toning its dense portions? That would effectively result in a mask which could warm the highlights, in addition to lowering contrast. This is just an idea, seeing how my latest landscape reversal print turned out - almost good! I used highly diluted Ilford PQ paper dev and a pinch of Rodinal and the highlights were closer to neutral than cyan. But on the original transparency they were ochre-reddish (late afternoon sun-bathed stone houses).