Yes, I have this set up. Its rocks! If you are using a Timney trigger, make sure to put a piece of .020 shim stock under the trigger assembly so the set screws dont crack the plastic lower. Stock up on 22 bulk packs (if you can find them), you will fly through the ammo.
I saw this last week and found one already set up in the for sale forum so I pm'ed the guy but haven't heard back from him since. The ad was a couple of weeks old so it might be sold but he could at least have the decency to respond with that info. Oh well, guess I'll just build one myself!
tried one without the 3.5lb trigger and couldn't get more than a couple rounds back-to-back ..... just had to work too hard for it too .....but i imagine that trigger makes it a dream