I think he was selling em for like $150 or so, plus shipping. Pretty sturdy. I looked for his classified ad, but I think it either expired or he took it off, guess no one wanted em. If your interested, let me know and I'll get ahold of him for ya, hes a regular on the Power Wagon forum I'm on, or I can shoot him an email.
My wood is Valley Oak. From local oak trees here in the area. Very very very very hard wood. But looks nice with a coat of Thompsons water seal on it.
You need the front uprights? or just the gate brakets? I beleive you bought the set from Jim in Illinois? I thought he had some more parts, otherwise I would just keep an eye on ebay, they always seem to come up on there.
Nick