Russ does great work, but his seaters are pricey.
You can easily make your own, simple, but functional. Take a case trimmed to the desired length, fill it with epoxy or a piece of solid material, wood, metal, delrin, making sure the length is correct. Drill out the primer pocket and install a bent rod and handle. You will still need to insert the bullet by hand, then seat it with the tool, two steps, but it works.
I have shot with Russ and his wife. Nice folks.
Paul