We sell one similar to the RRA as well as the Jewell 2 Stage. For your first trigger, the first option is ideal. Cheap, easy install, no sweat. The Jewell however is not as easy to install(tons of pieces), but once you get it in, it is fully adjustable. It is a very nice trigger. It is also $195.00. The J&T 2 Stage is $115. Ours break at around 2.5 to 3 lbs. Let me know if I can help.
AR-15 Specialist, Shop Foreman J&T Distributing