http://umstech.in/search_results.php try 1 of these ( L 00 Y 0300 ) they're good pumps for dumpers . I'm just not sure if their shipping time improved
copy/paste # in () into the search box on the site . the website is the same POS interface
Pressure side to up side of cylinder ( vent 2nd port or run straight to top of tank ) suction side of pump to bottom of tank . pump runs FWD to raise , pump runs REV to lower . It would be cool to put valve setup in like the real thing but not necessary .