Need Some Thomson Linear OPEN Bearings and Blocks

Hello Group,

I am in need of four new or nearly new Thomson PBO-12-OPN open linear
bearings and pillow blocks for supported 3/4 inch rails. I am
building a BIG, home-brew CNC Plasma Cutter and Router Table. I have
all my rails and 4 of my bearings so far...THANK YOU EBAY! But I
have not found any more of these bearings...I have been watching Ebay
for days and days now. Any of you folks got any that you would be
willing to part with? I know that they cost around $100 each from
McMaster-Carr, but I hope to get them for less than that. The ones I
found on Ebay ( http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?
ViewItem&item=1630525382 ) were 78.77 for four. They were in like
new condition. Anyone have any more? An Email to me at
Ratliffgrp@... would be wonderful.

THANKS!

David Ratliff