1971 340 Exhaust Manifolds

Hi all, I have up for sale or trade a nice set of stock 1971 340 Manifolds.I gave them a light sandblasting. These came off the 340 I bought last fall that was sitting as a time capsule in a shed for over 25 years. I'm in Innisfil, Ontario Canada. Shipping might not be too cheap for our friends to the south.But I'll pack them well and you will pay whatever it costs me. I can ship fairly cheap in Canada. $375.00 or I would be willing to deal for nice used or new 340 20-30 over pistons for my build.Thanks in advance!