Kris,
teehjaeh57 is a good consultant based out of Lincoln. I don't know if he is swamped right now, or if things are slow.
You might try sending him a PM and see what he suggests. He should know your soils fairly well, and may be available for a site visit.
(His email address is also available in his profile, but I don't want to print it in the forum.)
Good luck!