I have the Hypro transfer pump, from Lloyd and Meredith, in Atlantic Iowa. (with 6.5 HP PowerPro engine)

There catalog shows $337, for 2" unit. (page 7 on .pdf  or page 5 on catalog page # ) click on the red part; that says " Sprayer tanks and Parts"

It starts first pull, when choked = and usually you need to choke it, unless you got it warmed up good = for me, it never runs very long = small tanks.

Used SeaFoam, in its gas, and it always starts and runs, fine after Winter.

So far, it has only has AMS and water, thru it. ( I dump herbicide chemicals into sprayer tanks, themselves) No problems after 2.5 years.

http://www.lloydandmeredith.com/