I have been following along, and so far it looks like a topnotch job. There is nothing like a project that is not rushed, you get time to consider things and are able to figure out how to make it right. Laying out the rails first is definately worth it, I just love precision. You are using a laser or a transit to set the blocks? The transit can be questionable if you don't have someone behind it who will tell you that you need to lower it 1/4". The laser can get to be as exact as 1/8", which is just beautiful.