Your best bet would be to hire someone who has done this before and stick to their side and watch and learn as much as possible. Ask any questions you have no matter how stupid you may think they are, Their are a lot of welders and tools that i am sure that you do not have and will need, that will cost thousands on top of what the parts will cost, and on the your first build i feel it better spent on paying someone to show you the ropes. I am not a chevy fan so i would not use that power plant, rather a small block mopar will work better for the swap also as their are parts that will work better than the chevy. Also do a search on here and you will find a ton on this subject, and as Tim suggested try the Hamb also.
http://www.jalopyjournal.com/forum/