My Nimbus project so far used about 70000 dirt blocks.
My Helios project used about 50000 blocks. 5000 of which are bookshelves.
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New World Statistics:
What I have to produce items:
Wheat farm- Wheat 180 every harvest.
Sugar cane farm- 27 stacks ever harvest.
Melon farm- 10 melon blocks every harvest.
Pumpkin Farm- 20 pumpkin blocks every harvest.
Mob Tower- Varied amount of bones, rotten flesh, arrows, and gunpowder.
Tree farm- 104 logs every 2 days.
Slime Room- Slime balls.
Blaze farm- Varied amount of blaze rods.
Economic Statistics: (Currently in storage and unused)
The diamond to iron ratio- 1 to 128.
Game mechanics currently have diamonds to be 6.22 iron tools worth.
Update Log:
04-09-12: Created Sugar Cane Farm.
26-08-12: Created Blaze Farm.
18-08-12: Created a Slime Spawner.
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Older World Statistics:
These I have to produce material:
Floating tree farm- Basic colored logs.
Cobblestone generator- Cobblestone.
Economic Statistics: (Currently in storage and unused)
The diamond to iron ratio- 1 to 23
Game mechanics currently have diamonds to be 6.22 iron tools worth.
Wood income- 4 stacks available every 2-4 in-game days
Update Log:
Tree Farm has been created on Helios: 17-9-11
Wood income increased: 3 to 6 on 10-9-11
