PTO pumps: best replacements ???

I have trouble with the search function here.  I know that Bob Rooks or Tinbender at one point stated what the better pump upgrade for the backhoe pto would be for my Plastic Yuchai.  But i can't find it, perhaps it was on the old board. 

Anyway, I think i ran out of fluid for about one minute, before i noted that “something ain't workin'” right.  I've got the pump off, considering taking it apart:  don't know if parts are available:  10FBR2 is on the side of the pump plate, 2,000 rpm..

Any advice appreciated.