I built this to the specs described in various posts. See these for ways to mount hangboards, rings, etc:

Sprinter Van Training Systems by Steph Davis

Tom Lindner's Climbing Training Tripod Beta

A self-supported, portable pull-up bar for sale. Collapses into three 10' long rods and one short rod. Pull-up bar is 1" diameter.
I am moving and no longer have a place I can use and store this. The materials alone cost at least $90. Can deliver locally (Berkeley/North Oakland) for a fee. Note that the longest piece(s) are 10'; I can fit this in my 2015 Subaru Forester just barely.

Need this gone ASAP. 

Photo Credit: Tom Lindner (for reference of what this looks like in action)