Is there a way to make SEIV more challenging?

[iaen]

dmm said:
7) King Tut Scenario: Your real goal is not to take over the galaxy, but to make a tomb worthy of you. Can anything less than a fully populated sphereworld suffice? This must be completed before you die.

How about a fully populated sphereworld filled with cultural centers? (proportions mod ofcourse)

I think I'll manage right after Hell thaws again.

[Alneyan]

It would be too easy Iaen. You should at the very least take the Advanced Storage trait; 20% more slots to fill will add some spice. And then, why a single Sphereworld? You ought to find a system with two or three stars, and build as many Sphereworlds as will fit.

The challenge has actually been proposed several times, but nobody succeeded to the best of my knowledge. At least Dogscoff attempted it, and was under way at one point of the game; I do not know about its outcome though.