Want to Buy WTB: good 11x14 contact printing frame

I'm looking for a good USED 11x14 contact printing frame...one with the springs that deliver pressure in the middle rather than the PhotoFormulary formula that has clips around the edge. I'm skeptical of that design! I'm in Toronto so would prefer one already in Canada for ease of shipping but am open to hearing from others too. NEW ones are easy to find if you have the $$...I'm looking for a used one that has lots of life left in it. Please reply by PM or email only. Thanks!