Building Costs

[Jyoti]

I'm going Yurt on a few acres in Puna !

Here is the outline of the project.
Looking for some local wisdom, some advise, opinions, EXPERIENCE. thanks.

1. going off-grid with water / solar
2. raised platform
3. compost toilet
4. pyramid roof ABOVE & extending over the yurt and lanai.
5. no cesspool, just grey water, and composting in 'Nature's Head' toilet.

What would the permitting process be like ?
How high should I go with the platform ? I'd like to go 5 or 6 feet. What are the pros and cons?
Where should I put the solar panels ? (roof or somewhere else ?)

Any idea how much it would cost to do a raised platform ? per square foot, 5' , or 6 ' high ?
Also want to put a pyramid roof on top. it'll be about 1000 sq ft.

Thanks,
Jyoti