Two gender changers and DVI -> VGA should work fine... No, I'm not being serious here, although no doubt there is some Chinese factory, somewhere, turning out DVI gender changers for no evident reason.

No reason VGA -> DVI-A wouldn't work, but from my limited experience/knowledge of displays, I think ones with both RGB and DVI interfaces generally have a VGA port and a DVI-D, rather than a single DVI-I.

(For reference, DVI-D is DVI with only digital signals, DVI-A is DVI with only analog, and DVI-I is Integrated, i.e. both, the universal donor you mentioned.)