Oncidium rehab

[Orchitty]

Hi. I recently bought a beautiful Onc. Firecracker 'Lucky Strike' that came potted in sphag moss. It had a nice mass of roots wrapped tightly around the moss. After about 2.5 weeks the roots and moss were still damp and the flowers were falling off. I've never had any luck with sphag and didn't want this to kill the roots and plant so I repotted in bark. Problem was that the root ball was so tightly wound around the moss. Figuring there were plenty of healthy roots, I cut a line through one side of the roots to get at the moss. After repotting, over a week, the leaves, though still green, starting disconnecting from the bulbs Some of the bulbs also got soft and one just came apart easily. I have one wrinkled bulb left with some leaves and the mass of roots. Is there any way to rehab this plant? Would love to be able to save it. It was so nice