Adding a ditch bank mower to MF451

[Eastgate]

I am new to hydraulics but get the basics. I have MF451 4WD 2004 model equiped with 1055 front loader and rear remote hydraulics with open center valves. The ditch bank mower I am adding needs a float detent valve and I really don't want to detach my loader when I use it. I would like to add a second float valve but haven't got a clue how to plumb it or what I need. I am pretty handy and know that if I knew what to do I could do it. Does anyone have experience adding a second float to the 451? Hydraulic specs in attached image. Appreciate your help.

 

[RayIN]

Did you ever solve your dilemma? I found a solution if not.