I'm posting a couple of pictures on this thread at the request of another pelicanite.
I used the pipe coupler tool set suggested in this thread but found that one stubborn bearing caused me to upgrade the threaded rod to 3/4 in and add a couple of foundation washers (square metal with a hole drilled through the center... available at Lowe's in the foundation bolt area). I flipped the pipestand pieces with the nipple facing inside the coupler to provide a larger area for the foundation washer to rest on.
I also had to get the 3" coupler ($9) at an electrical contractor supply shop... everything else was available at Lowe's.
