Crystal Purchase for Gravitron Research

I am starting to horde crystal as I set up my newest planet for Gravitron research. I am ramping up Robotics Factory to rank 10 (currently at 7), then I will build 2 ranks of Nanite Factory and after that I will build 12 ranks of Research Lab. I havent calculated wether I should build some shipyard ranks beyond the required 1 for SS construction.

I need to build 4919 solar satellites which require a total of:

Crystal: 9,838,000
Deuterium: 2,459,500

My current stockpile (i will update daily):

Metal: 3.85 Million
Crystal: 3.10 Million (31%)
Deuterium: 402k (16% - might actually need this more than crystal)

I will only be able to trade metal until I have enough deuterium saved.

i'm saving to for the graviton research. i need about 8000 solar's.
i've got robotics on level 10 ,shipyard lvl12 ,researchlab lvl12 and level 3 nanitefacory
if your building that much solar's try savind also for the terraformers.
when you have the power you may aswell expand right

once the terraformer stands it doesn't matter if the solar's calapse the terraformer remain the same

i did the research for that

-Jelles-

What am i going to need a terra for, not really doing anything else with that planet... not yet at least.

well you get some extra space for it. and you could expand en resourch mine level for it above lvl25 it goes fast.
but it was a sugestion

good luck...

Update:

Metal: 6.65 Million
Crystal: 4.66 Million (47% of req)
Deuterium: 900k (37% of req)

Rank 10 Factory: Completed
Rank 2 Nanite Factory: 1 Hour left.
Rank 2 Shipyard: no progress
Rank 12 Research: no progress

Update:

Metal: 750
Crystal: 4.67 Million (47% of req)
Deuterium: 1.59 Million (65% of req)

Rank 10 Factory: Completed
Rank 2 Nanite Factory: Completed
Rank 10 Shipyard: Completed
Rank 12 Research: Completed

Now all thats left is saving up the rest of the resources

Update:

Metal: 2.07 Million
Crystal: 5.725 Million (58% of req)
Deuterium: 1.741 Million (71% of req)

Rank 10 Factory: Completed
Rank 2 Nanite Factory: Completed
Rank 10 Shipyard: Completed
Rank 12 Research: Completed

Now all thats left is saving up the rest of the resources

same as me almost ,i'm saving for the grav aswell

robotics lvl 10
shipyard lvl 12
research lab lvl 12
nanite factory lvl 3

metal: 2.280 M
crystal: 5.998 M
deut: 3.355 M