Don't forget the internet. Try ebay - nothing to loose. Recently I had to obtain another hyd control valve body for my 610 because all three spools were shot. I went to ebay and found a complete hyd valve body. I bought it (from Hess Brothers, in Indiana) and had it sent. Because it is such a pain in the ass to R&R I had it pressure tested before doing the install. As luck would have it, the inner hyd circuit of the valve body (which is the rise-lower/open-close circuit) was cracked inside. The Hyd shop called it a "fracture in the casting" = WORTHLESS. I was able to salvage the three spools and used them in my old valve body. Of course while it was opened up I put new O rings and seals in it. Moral of the story - let the buyer beware!!! At least I was able to end up with a serviceable valve body which was the goal in the first place. Good luck. buckshotHave you asked your dealer?
Can you get a machine shop to repair or make a new one?
You sadly have limited options here.