Make items like this upgradable by other players. Most of mine are already done, but would be nice to be able to alert the planet to other players that are the proper race and have then share knowledge with you.

Others can already build on your planet; why not make that a useful tool!

I'm guessing Dan want to make $$ from race changes?

Well if that’s the case you can still hire someone to do it for you, there are ways around that.

Just have the planet traded to the player that can upgrade it and then invade it back.

Hell for that matter i could do it for free and no gp need to be used or races need to be swapped.