This is my first time posting here
Like Greg said, buy the service manual and study it (has lots of pictures to illustrate steps)
if you want it to work, make time on your weekends. This is a project!!! But it is certainly do-able if you want to learn.
Here is a good parts sight to start. the link is to the manual. https://www.rockauto.com/en/catalog/plymouth,1948,p15+deluxe,3.6l+218cid+l6,1486874,literature,repair+manual,10335 its $13.30 plus shipping off rock auto.