cb350 f exhaust

[jarrettsab]

I have a shop doing a little work on my 1973 honda cb350 f. They said the exhaust has a hole in it and needs a replace. They said only "exhaust number 1"

anybody know where i can pick up one, or find it?

I am also looking for a tank and petcock, if anybody has one for sale or a place they sell. thanks!!