Wanted: 1816 barrel bands & other parts

[dogfoot]

Hello,
I am new to the Civil War era. I found a 1816 Harpers Ferry dated 1826(converted).
The stock is busted in half around the lock and cut off very short under the barrel.
I found a reproduction stock, but I need all three barrel bands and the top band spring.
I also need both sling swivels.

thanks for any help or leads,

Kent