dredge pump

hello i am Paul im new to this forum and to the subject of dredges, i apologize if my english is not very good i would like to get an extra income and so i am trying to build a dredge with nozzle with a trash pump with 3 inch inlet/outlet 250 GPM 40-45 PSI (i know its not very good, but i cant...

I have an older 5 inch dredge with two 5hp B&S motors and Gold King 2 x 1.5 in pump (both with T-80 air pumps). I damaged one of my pumps housing beyond repair and I am looking for a replacement. Suction was great so I did not want to upgrade with newer pumps at $700+, but still want matching...