Do these need to be heat treated? Is there a specific material needed? Steel could be simple 1018 or heat treated D2 tool steel and would be very different in price.

Might want to look for a hobby machining page, lots of talented retired machinists willing to do little an afternoon project like this for beer money.

Liiks like a press-fit drill bushing to me. Look on mcmaster carr. Is it hardened?

You could also draw it up and send it off to places like sendcutsend.com or jlpcb.com for a quote. They do machined parts and have a good selection of materials.

About tree fiddy Jokes aside, it will depend on the tolerances for this part. If you tolerance it properly to ease machinability, the cost shouldn’t be too much. I’m just going to ball park it but probably something along the lines of $80 in total, maybe less depending on the shop you go to. . One idea is to go to a college that has a machinist program and see if they’d be willing to make it for you.

What material?