Re-spec to a structures no matter what you want later. You can switch after you reach 90.

Resourses needed to level up:

2k Aluminum, 200k Steel, 200k Water, 500k Ore, 60k Gemstone

What to craft:

Survey Tools till Level 10
Wind Generators till 18
Craft Stations till 42
Fountains till 86
Gungan Heads till 90

What you need:

Entertainer buffs for experience gain.
4-5 structures crafting tools, or as many as you can handle.
Go to options uncheck under Misc. 'Confirm Crafting actions'
When crafting on the last window of 'Create Prototype' check the box 'Practice' this will destroy what you make instead of filling your inventory.. you are after speed, as soon as you start making with one tool quickly make another item with another tool.

Ugho, RUFF Master Structurs Trader, Bloodfin
www.ruffcity.com