What Excatly are you doing to make it truly independant???adding extra outlets or connections??What would the cost be and were can you get the kit from if available???Maybe send the info to JD. I think it is one of the 2 things wrong with the 2520. The second being the location of the hydraulica lines. They make a tempting step for the little ones!!
Hope you get it soon! Looks like it will be nicely outfitted!
No kit but I ordered one of these Eaton Cessna Valve and brought it to the dealer, add a bit of know how and... I ordered with the power beyond kit which made it easier.
I'll post pics when it's done.
You can search for Eaton Cessna and find other posts regarding the valve.