First dump as many points as you want into Planetary Interaction. If you want your skillfarm to do PI for some extra income, this is worthwhile. Essential skills are Command Center Upgrades and Interplanetary Consolidation, which both are CHA/INT skills. Other useful skills are Planetology and Advanced Planetology, which are INT/MEM. So a remap with points going to INT and CHA would be beneficial.
After that, grab a few ranks of useful piloting skills. Gallente Industrial to fly an Epithal (if you start as Gallente, this skill is free) and whatever basic piloting/fitting skills you deem necessary, purely as a QoL thing to make flying around the Epithal faster. No need to remap for this, as it’ll just be 1 or 2 ranks of each skill.
Once the character is set for PI, it really doesn’t matter what you put skillpoints in as you won’t be using those skills. Find a set of skills with the same primary / secondary attribute. A good category is Spaceship Command. Many skills there use Perception/Willpower. So remap for those stats and just queue up a boatload of ship skills. When you get close to 5M SP, find some skills you have at low rank to fill up the bar to exactly 5M. Once you hit 5M, just keep training the same type of skills, ideally high ranks so you don’t have to queue up so many.
Get perception/willpower implants to increase the rate of learning.