I was shooting in the dark with the 600' figure, based on both the height and the lateral distance. It's actually a 6-story building, so it may be in the area of 60' tall. However, all of the wiring will need to be installed on the building's exterior and wrapped around the roof's wall. I might have been way off, though.

As far as begging, I'm having a hard time finding who I can speak to that has the authority to adjust the demarc. Verizon states that they cannot speak to me about doing any work, since I'm not their customer; Covad refers me to Verizon. It's a thrill.

I definitely have no issue in bringing-in a qualified wiring contractor to make the run for me, I'm just thinking it's most ideal to have the NIU within my unit considering I have the single pair available (It's now confirmed that it's run on HDSL2) and there wouldn't be any distance issues.

I cannot thank you folks enough for all of the continuing advice.