Preservative Applicator For Small Squares Questions

Reading a bit about adding preservatives when making higher moisture hay - but have a few questions for small squares.

Sounds like Harvestec makes/rebrands for New Holland and Agco - I assume their systems are essentially the same?

How large of a tank of preservative is typically used on a small square baler? Initial cost for the system - ball park figure?

Once you've got everything set, as an example 22% moisture, how many gallons would one apply per ton of hay?

What is the typical cost per gallon?

Any sage advice is much appreciated.

Thanks!
Bill

Preservative Applicator For Small Squares Questions