Hm, I think the frame is really designed more for the use of a drop bar, as far as I can tell. I had that 130mm stem, and then an Easton bar with an additional 85mm reach. I think you are likely to find this a rather "short" setup with that flat bar - but a test ride will tell!
Nice one, good to know. Yeah the stem included looks like a decent length, so I'll take a punt on it and go for a test ride.
Here's some pics (and no, that campag wheel on the front unfortuantely isn't included in the £200 price)