I'm new to the game. Looking to get a backpack sprayer. We have a store in town that sells what amounts to overstocked items. Went in today to see if they happened to have any for cheap. They had one in stuck. It's a Hudson 4-gallon: https://www.amazon.com/Hudson-13854-Bak-Pak-Battery-Operated/dp/B000NOT7RA. Priced for $70 right now (price will start dropping the longer it sits int he store). Would this be a good buy for $70? What if I paired it with dfw_ wand setup? Looking for any advice.