OK, did a quick search on the net and found all three. I like the looks of the N-gear best and imagine that I have sufficient materials in my shop to just fabricate one with 14ga. stainless steel and the appropriate sized hose clamp.

thanks for all the help y'all
klc

edit: after looking at pricing; it probably wouldn't be worth my time to make any of them though. I can get the N-gear for $12.00 shipping included direct from the manufacturer. Just need to measure the seat post now.