I gave Big Jim a whole new basket with a liner of loose coco fiber around the old basket. He has two more spikes ready to open that I was worried about before. Pic in a few days! We'll see how the flowers last this time.
Yes, the poor little B. nodosa is overdue for a bit more of a mount, but as you say, just wiring it onto a new piece will do the trick.
Your humidity is a little more controlled in the OC, don't forget! It's been on the dry side outdoors for 3 days, and windy so things have been drying out fast, and I've been spraying the mounts and Vandas like crazy.