The machines do not appear to have the torque of a garbage disposal in terms of being able to grind up solids the consistency of potatoes.

Dual cleanouts are a good idea, because they not only keep the dirty sewer machine out of the house, they can also clear the pipe both directions.

First, a macerating toilet that can use the drain pipe the washing machine used to use ($3,400 including the Liberty Ascent II toilet) or an ejector pump, which would be installed in the storage room on the other side of the wall; the pump option would of course require jack-hammering to create the pump pit ($1,200, I would supply the toilet). 

One in the kitchen next to the fridge (behind the cabinet in the picture below) and the other in the detached garage where the laundry machines are at.

I think you can buy lots for the prices you mentioned, but you might need a time machine to build a 3 bed house for 75-100k.

For instance, purchasing a new machine might increase production and thus increase future revenues.

I called them and got an answering machine.

They are a sales machine first and foremost.

@Michael A DeAngelo I know some people who are using Deal Machine, but I haven't used it.

It'll give you a low risk, cash machine of a property that gets you to your next deal really quickly.