Let's say you knew someone that ran over his spot sprayer with the tractor tonight and needed to replace it. What would you suggest?

Said person normally uses it on the back of his mule. And is thinking around 25 gallon with maybe a boomless sprayer option.

His old one was 15 gallon with a boom sprayer. Boomless would be nice but it needs to be configurable since he sprays his yard and different sized plots with it. He would like a little bigger but not so big he can't move it around when needed. And the old boom he had was limited to about 6-8 ft coverage.

Remember this is just a hypothetical.