you can use any k-member with the stock A-Arms and not have to switch to a coil over. You will have to plasma parts of the stock A's but I've been running that way for over a year now.
I think the D&D A's allow for a normal or coil over setup but I'm not sure.
I have the Q-A1 right now, and I have the full UPR setup in my living room waiting for me to install.