If it's going to be strictly for the track, I think your BB is too low. Most modern track bikes have about a 55mm BB drop. I'd also consider steeper HTA and STA, and chainstays just long enough to provide wheel clearance from the seat tube (about 395mm for 700c wheels and 55mm BB drop).
You might want to look at the sample geometries for Waterford's current track bikes
HERE.
I'm about your size (6' with long legs - 35.5" leg length) and this is what my future track bike will look like:
If you're going to use Richard Sachs' Newvex lugs, I believe you'll have to go with OS tubes which isn't a bad idea on a large frame, but I wouldn't go with the lightest tubes you can find. Weight isn't that big an issue on track bikes where you're not climbing. The only time it'll make any difference is when you're accelerating while sprinting, and that won't be much considering the difference between more durable tubes with thicker walls and the thinnest tubes is measured in ounces.