Mine has Tee fittings in the lines from the control valve. The lines to the front go along the loader arms. I have Quick Connects right where the QCs are for the loader, so if I take the loader off I disconnect 6 fittings instead of the usual 4. About halfway across the brace behind the bucket, another set of QCs tie into lines from the grapple which are held away from being caught in the closing bucket cylinder by a home made standoff about 4 inches long -- basically a block of wood drilled to accept a long 3/4 bolt with the normal hose hold downs on top of it. As an extra benefit, this setup would allow hyraulic angling of a front blade should I ever want to go that route.
Whatever you do, I suggest keeping the lines up and away from the bottom of the tractor as much as possible to protect against snagging them.
With this arrangement, I cannot run the rear remotes and the grapple at the same time. Well, I guess I could, but why would I want to be opening and closing the grapple when using a log splitter or something? I've never used the rears yet, but the grapple sees a lot of use.