Sorry for the short reply was eating and got lazy lol
Let me elaborate.
the two I named above will cut the body and provide the parts such as the bolt and sled needed. They will also slot the hammer and shorten the pump arm.
The rest will be up to u to decide. Such as pump or semi and parts.
U CAN do it your self without a mill. I did it. But. It will not look the best. And it will take a very long time