I started really looking at what frame would let me use most of what I have on my current 29er HT. My frame is bent, slightly. But I know before next season a new frame is in order.

So I really started looking at 29er FS and on the CS-036 I like what I see. My main question so far is, Can you get rear drop outs for use with Quick Release wheels?

Does this "135mm QR/142*12mm axle" mean it's a option or comes with parts for both types of axles?

Yes, dropout are replacable and you can ask for any variation

Yep, just ask Peter for the QR drop outs but also get a spare set of thru axle drop outs for future upgradeability.