If anyone is interested in classic [spiral] map for PR then one observation I want to make here is that mods using classic vanilla style map works much smoother and quicker than mods with custom map. I don't have time for extensive mod works, but vanilla style spiral map with hyperlanes from PR should work nicely. It won't be as trivial to navigate as the vanilla version. At start it may look a bit swamped and messy but I see no reason why coding proper hyperlanes to spiral map shouldn't work. Traveling e.g. from Courscant to Kuat will not be as simple as it was, as more planets will come into play.
Of course there is one thing which must be done - size factor for planets must be set to 1.0 (or even less). Default PR scaling will add to confusion. It's one of the things I un-modded on my PR. Prefer smaller planets, it's easier to navigate stuff. And I never had really time to sit and toy with fonts so all these camped planets are truly separate from one another.