I'm still a year away from getting licensed but I'm starting to plan now. I plan on having two skid mount sprayers between 25 and 50 gallon in a truck bed, one for lawn and one for shrub. Can anyone recommend a nice sprayer. I need to spray at a rate between 3 and 5 GPM. I've seen them range from $2500 to $400. The latter being just a 12v pump (do these work well)? I would like to stay under $2000 for the pair. Thanks for any advice.