BobBrown - sorry I'm late on an answer. Your Kubota dealer handles Land Pride grapples. Mine is the GSC1560. 820 pounds of AR400 steel. For that price - $4350 - they installed the WR Long 3rd function valve also. $3150 for the grapple - $1200 for the WR Long valve. Mine is one of the heavies grapples that Land Pride sells. It has been a real beast. Your Kubota dealer can get you any grapple that Land Pride makes.
It's not cheap but the nice thing - not a moments problem with any of it. Check post #18 for pictures. AND - do not forget to do something regarding a mod to your brush guard. Limbs, sticks & stobs have a nasty way of finding your radiator, grill or battery.
FISHBONES - when you get a chance - post a pic of your grapple.
There is a custom mfg company just 70 miles north of me. ANBO They make custom grapples - among other implements. I would have went with one of their custom made units - but I wanted it installed by somebody who knew what they were doing. No way to get my tractor up to ANBO. Couldn't ask Kubota to install a grapple made by others. Besides - this GSC1560 is more grapple than I will ever need.
The Kubota dealer knew what I do out here and the install was great. All the controls and hoses are well protected and have never given a problem