First flip, need help.

[Chelsy C]

Thanks all in advance, I have been reading this forum for 2 months. I finally found my first flip and will close escrow on 7-5-2011.

The property needs a new Kitchen, bath, fence and yard work, also inside and outside paint. And I considering replace the roof, the roof looks like 20 years old, but no leak.
My question and concerns are:

0) Do I need to replace the roof even know it's not leaking for flipping the property?

1) Do I need to hire a license contractor having insurance to do the job? if so, is it better to hire a contractor for remodeling the kitchen and bath, and the other contractor for painting and one more contractor for the yard work?

I am thinking to have my uncle to do the work, so I don't have to worry about the liability issues, not sure it's a good idea since he prefer paying cash.

2) What insurance policy I need to get while remodeling and selling period? vacant and renovation policy?

3) I have took out some pictures of the kitchen cabinets and image of the baths from the web which I feel It's very nice, and I would like the contractor make the same. However how can I find out where to purchase those custom cabinets? I looked at a few local stores, and they don't have them.

4) usually how much I am looking at for those works new kitchen and bath, and the other contractor for painting and one more contractor for the yard work?

5)Is better to get a owner permit to do that work or contractor permit or do it with noo permit from the city? I see a lot of rehabbers prefer not getting the permit due to the fees and the contractor charge more due to they have to stop the work and wait for the city inspector to sign off before continue.