ORIGINAL: Griff in VA
If you want to go easy, and inexpensively, try these guys.
http://www.del-ton.com/ I understand that they make the best, quality but inexpensive stuff out there. You can put together one of their kits, plus a stripped lower, for around $750. Again, I am far from an ARF knowledge-source, but I try to learn a lot from those around me.
Your link didn't work, do you have another one, and also, what caliber are you building?