Thats a nice powerfull tractor, but its still an ag setup and not a commercial machine. I'd be careful on how I did this, but I do think with a little thought it could be done. I'm attaching a pic that shows where I bolted the plate on my light duty bucket, notice its low and near the bottom bend. That puts the stress near a "V" and also directs the up lift force in the same plane as the large back plate of the bucket, very strong place. In your case I would use a heavier and longer backing plate, I'd guess 3/8" x 4" wide and extend it the length of the bucket, right to the lower arm brackets, like mine only with a longer, wider backing plate. I like to use bolts for something like this, and I'd say eight 1/2" #8 hard bolts would do, spaced in pairs. By using a center grab point, the load will transfer to the bottom pin on each side of the lift arms, ignoring the roll back cylinders completely. Gotta be carefull though if you lift anything bulky this way because there won't be much room between what you're lifting and the tractor front grill, any swinging of the load will hit the tractor.