A great place to start is the surround view camera thread. You'll need the mirror modules, mirrors, front and back cameras, cpvm, and lots of fakra cables. You'll also need a custom harness. I went to jimmy07 on here for mine. He's a wealth of knowledge and very helpful. After it's all hooked up you'll need alfaobd on a pc to calibrate and activate everything. It's not an easy or quick install.
All said and done you're looking at 1000 bucks or more if you go used parts, and a lot of time. I've been plagued with bad used parts so I'm pausing for a minute to start sourcing new units. Gone through 3 mirrors and two front cameras so far. Giant PIA.
Worth it? You decide. Had I had more local options on the ecodiesel or had I been willing to wait for the covid delay times I may have just had one built from the factory. Unfortunately ram doesn't offer everything I wanted on a single trim level either, so here I am!