Well it looks like I'm going to fix this machine. We've exhausted all other options, and amazingly enough, it'll be cheaper to fix than to trade, thanks to NH parts support. They've sent a bare block, piston rings, and a gasket kit.. I have to pay for labor an all other associated things not covered.
I plan on building a subframe that will link the engine subframe to the loader mounts and then on to the rear axle.. hopefully it helps.
Wife told me that spending twice as much as it would cost to fix our tractor on a new one isn't going to happen.. But she told me she'd rather fix ours, and buy a rotary mower, and still spend less.. I'm fine with it, I love my 33D, it's a great tractor.