I ride a Cinelli frame that is pretty much exactly the same aside from the colour. At 6'5" and 265 I'm very close in proportion to you. My bike came with Columbus tusk forks and I have changed them out for Pro Lite track forks for a big difference in the stiffness of the setup. I have been told that the frame flexes quite a bit under my standing starts and am considering going to something larger and carbon, but for the price I would say the Cinelli is a winner, though I haven't laid eyes on a Dolan. We don't see too many of them here in Oz.
I would really prefer something with a longer top tube which is hard to find in a non-custom or cheaper bike. Without knowing your proportions and assuming that you're similar to me, I would go for something else, perhaps the Dolan if it fits better, or wait it out for something 2nd hand.
I really jumped on my bike because it came with Dura ace everthing and Velocity wheels. It really is a good setup, just a little small for my liking. But it has been a great experience in my first year of racing.