I have the entire manual for the Buffalo 14" bandsaw including parts list. I too need the trunion brackets (broken pot metal) Any sources available? If you still need a copy of the manual, I can scan it and send it or post it (14 pgs.)
I found a place on the internet called The Saw Center that sells trunions, but not sure if it would work- also a bit pricey ($34.50 a pair) Interested to hear anything more.
I've had good luck with replacement parts for my BP-VBS-14 bandsaw by ordering from Harbor Freight tools -much cheaper than other sources! If you click on one of their bandsaws, download the pdf for their 14" model, and then find the part you need from the exploded diagrams. I replaced the trunions, the blade guides and the upper wheel bracket that you use to tighten the blade tension. I did have to file it a bit to make it fit.