New Seat Post Before Motorama

I just broke my seat post on my Bedford trials uni (miayata seat) and I need a replacement before Motorama next saturday. I was wonering what the best replacement seat post is. UDC Has GB4 universal and a Torker LX Seatpost. Both say that they can fit a miyata seat. It also has to fit a bedford frame. So:

  1. Do you have any recomendations out of the UDC ones or the ones from Bedford?

  2. Do you know know what diameter the bedford frames are (25.4mm?)?