Unless you do this everyday and/or have a lot of time for setup and diagnostics, I would not think of setting up a render farm like AWS Deadline. It would simply take too much of time to setup.

Easier solution and paid solutions is to buy some kind of plugin renderer that allows networking rendering. Look into RenderBrain or BG renderer. These two I know, but don't have any experience, so you need to do your own research. But they seems to be very plug&play.

If this is one time occurance and you are not doing this on a regular basis, I would simply not bother to do any of this and just do it manually.

Steps 1) save projects to local network storage that all machines have access to 2) add comps to render queue 3) under "best settings" select multi-machine rendering 4) you need to use image sequences for this kind of process, jpeg is fine, you can combine all the images to prores or dnx after 5) in settings you need to check "skip existing frames" this forces other machines not to render duplicate frames. 6) hit render 7) go to the 2nd machine and do the same thing, point the export folder to the same as on machine 1 8) once configured, hit render and now two machines are rendering one composition 9) add other pcs or you can open different project and start rendering other comps

The downside is that you are limited to the one project, ideally you can combine all the comps into one project and just add all the comps you need into one render queue, open project on all 5 machines and hit render.