all new 4-4-0 American

[rich1998]

For couple pockets, go to the Precision Scale site and see what they have.
Some years ago I bought a brass casting for my bashed 0-8-0 HO Winans Camel loco pilot. I flattened a piece of brass wire and carefully drilled tiny holes in each end to make a link for a pusher bar. I used common sewing pins.
Many years ago Alexander Scale models sold a link and pin set supposedly for HO scale but it was at least S scale. I had a few sets. The brass pin scaled at almost three feet long. The casting for the car was huge. Even then, running link and pin was a real pain and very easy to lose the pins and links which were over size. I really do not thing you would like to do this.
Which I still had my photos from Photo Bucket.

https://www.precisionscaleco.com/wp-content/uploads/2018/04/HO-Steam-WOP.pdf

You would have to call them or check Walther's for stock. I use to order from them via phone but they have moved.

Rich