Took a look for the digester and all I could come up with a product offering?

You might want to look at BEAM – Biologically Enhanced Agricultural Management.  This process demonstrates how to create on-farm bioreactor for fifty bucks or so.

 Please take a few minutes and listen to a new on-farm bio-reactor process. 

On-farm Bio-reactor - FYI

What to understand more Dr Johnson's June brief can be found here Johnson Su Bio Reactor - Webinar June 20202

As you consider BEAM and On-farm Bioreactor there are a couple of kick-starters you may want.  First, see if you can get a five gallon bucket of ready-to-go biodigested materials to inoculate your digestors.  Not absolutely necessary but can kick the process up fasters.  Next, once the first heat of the bacterial digestion is past (three to five weeks after start) add in worms.  Their activities and gut create even more goodness to your farms sour-dough-starter-like soil inoculation.

FYI