Yup same here I'd build 3-4 more ARs before I bought one for 3k, Bob have you looked into LWRC and are you looking for 5.56 or 7.62 and DI or gas piston
I have 7-8 of these I can bring, they are AR500
http://i89.photobucket.com/albums/k204/stangsn95gt/A11DD251-4D1B-4437-8039-8DE8BAE67977-16192-0000133A0B4E5E99.jpg
In my night stand G21 insight M3 light extended slide release polished internals and stainless steel guide rod.
http://i89.photobucket.com/albums/k204/stangsn95gt/Guns/FC110230-0C9B-47F4-B47F-D2683674F348_zpscb8ysuqk.jpg
I'm currently running aimpoint PROs as my red dots they aren't crazy expensive but are very reliable. I've also just picked up a vortex viper PST 1-4 which I really like and will prob be using on my next build as well.
Only 30 mins left but its on fox sports 1, just turned it on and i see my buddy who works for Rahal changing the inside tires on the Z4. Rahal BMW is currently 2nd in their class