I gotta line on some fire walls. You need a 140 and 152, what year? What are they worth to you?

I made a 150 fire wall for my A&P practical. The examiner made a die out of the old one by pouring some type of molten metal into the old 1 and then he had me and another applicant spend bout 3 - 4 hours beating the thing out with hammers. After he trimmed it and drilled the holes it worked fine.