With regards to the issues with coloured dice, dropping counters and so on, I think the minimum lovable product version will be the best approach. That way you can solitaire play the major part of the game with much reduced record keeping. All of the counter/dice interactions are for “zoomed in” parts of the game and zooming in is intentionally optional.
A Lot of Zeroes is also a standalone space exploration game that I’ve published except the scale is up to 30LY/cm and up to million year long turns.