I'm thinking of getting a car. DPMS has basically what I'm after, so does doublestar. Can you really save enough by building it yourself to make it worthwhile? I'd want a few extras, but nothing elaborate. Mainly after a detachable carry handle, vertical grip, decent open sights, rail-type handguard and naturally the 6-position collapsable stock. I've got a friend that has an ffl to get dealer prices on stuff from Brownells, etc. What do ya' think?