I found a vendor of 30% and 80% receivers and want to start making myself. Are there any builders here on the hide? I am going to buy a AR-10 lower dipped in multicam as well as a upper and stocks & forearm.I would like to know who you guys feel make the best super match barrels. Next trigger groups and match bolt carrier and bolt.I want to build the best rifle I can or would you say have a good smith build it for me? I wanted to build myself and thought if I used good parts I would get a decent result.I have a nice ACOG but its a daytime model only with doctor site on top for close range. I plan to have my scop dipped as well as 10 p mags. I thought I would use a adjustable gas block I know the build will run me lots of money but anytime you have a custom paint job with scope & mags it costs. So if you can come with a list of good barrels and parts please I was planning on going with a 18 barrel.