Right now, we're planning on sending the pdf of the first issue our the Friday before San Diego Comic Con.
In general, yes. We've already accounted for postage in the rewards / incentives, domestically and overseas. In the event that your reward package weighs more than 16 ounces, we ask that you consider pledging a few dollars more.
Unless it says otherwise, it means you get the standard, non-variant, non artist proof, first edition of the book. When you qualify for different editions, we'll list it out specifically.
Don't see the answer to your question? Ask the project creator directly.