A friend of mine who has fabricated some equipment for me is looking to sell a yoke that he recently designed. It is a bolt-together design meaning that the implement can be disassembled for easy storage or transport (good for individuals who do not have a truck or have limited space in their gym).
The price is $325 + Shipping (estimated $50-75), or local pickup in Charlotte, NC. World's Strongest Man will be held here in September and if anyone is driving here and needs equipment please contact him - Joe Weaver / firstname.lastname@example.org.
I have used a similar yoke that he made for me and loaded it to 900 lbs without any issues, other than it being really heavy.