In Rock Desktop it asks for the base location in WGS84, but there seems to be very few converters that are trustworthy in reporting a conversion from NAD83 (2011) to WGS84 (G1674). What do you suggest using? I found this(WVDEP Coordinate Conversion Utility) resource that seems to work for the lat long NAD83 to lat long WGS 1984 conversion. Thoughts?

I have had great results just using Civil 3D. If you use Civil 3D, under survey should be a geodetic calculator. Pick you base point and it will give you the Lat/Long. When I use this and correct to ground it normally only moves it a tenth of a foot.