I had a few different sprayers over the yrs, between me and my hunting camp
I had a Fimco 40 gallon sprayer, I made a BIGGER boom, added more nozzles and a larger pump, and it was awesome sprayer , was cheap and easy to modify from the stock set up to what I did, used it to maintain 16 acres on a farm I managed for hunting!
I had the boom so I could run it in 16 ft wide, of like 8 ft or smaller too, as I had it so it folded in to about 4 ft wide only!
I did sell it after loosing that farm, as I had point sprayers on other lands, but for being pulled behind an ATV< it was great
IF I wanted to do again , HOWEVER, I think, I would just buy a tank, and make my boom and add the pump, and use it on the back of a trailer I have, as my trailer would allow for it to sit Higher, and when NOT in use can store the tank Boom easier I think too,
there NOT hard to make , all parts are very simple to work with!
ALSO< note having a hand held ON OFF on boom is super handy, Fimco, has a wireless one too!
I cannot seem to add pic's here again, or I would post pic's of mine,
if anyone wants more details, I'd be glad to share.
as for is a BOOM or Boomless type
I'd prefer a Boom, way less wind drift IMO!
all the more so when you can adjust the height of boom!