1) Find out as much as you can from your clearing firm before spending any money on lawyers, accountants and/or consultants.
2) I haven't used their stuff but look at miramarresearch.com. They may have set-up documents that you can use.
I'm in the process now. I am paying ~$15-$20k to a one-man legal firm, who works exclusively with this process. I know others do it themselves regularly... but I see it as a worthwhile investment to get it right.
Be sure to ask lots of questions. Each of your service providers should be able to refer you to a number of other providers you'll typically need:
I should also add I got a quote from a top tier law firm which specializes in hedge fund / alternative investments. I was quoted around $40-50k for fund creation.