Still need to do the pics, but the parts are in and installed.
The Choate is very well made, the storage compartments are o-ring sealed and provide a superior cheek weld and moves it up to put my eye in perfect alignment with the RX30.
I ordered, but didn't use the alignment plate, buffer retainer pin/spring combo, buffer spring and buffer.
I hate ordering something just to find out you need something else and have to wait.
I got the stock castle nut off using a pipe wrench - scratched it up, but I had ordered a new one and Midway keeps pushing back the DPMS wrench. I would suggest if you do a swap, buy a new mil-spec castle nut (lock ring) for <$4 and use a pipe wrench to pull the old one. I read way to many stories about breaking, bending the purpose built wrenches.
I just tightened the new one buy hand and used a strap wrench to cinch it up, I'll use the real wrench next month when/if it comes in to verify tightness.
I also put a streamlight TLR-1 on a 10 deg offset block from Daniel Defense and an ERGO grip that mounts directly to the stock forend.