Ken, if this were my plant, and most important - under my conditions - I would take it out of its pot, see if it has any roots, even just healthy pieces of root. If yes, I would put it into a mesh pot titled forwards ( so that water doesn't collector in the crown), anchor it with just a bit of Coconut fiber and hang it into the lower tier/ a bit more shaded and not that far away from one of the warm air registers in my greenhouse. Since I simply water with rainwater daily, this plant would get thoroughly watered daily and from the top too!!! (And dry up pretty quickly in-between)
Btw, I have a Phal right now which fits this description and it is growing and in spike.....
Now if I were to see LOTS of good roots on this plant, I might mount it or simply plop it into a bare Clay pot with just a touch of Coconut fiber so it doesn't wobble and so the roots can adhere to the pot.
Again, I don't mist, I water thoroughly pretty much daily. I have to, since things dry up quickly.
But, I don't think I can advise the OP to follow my directions, since her conditions are surely a lot different from mine.
Here is my plant, it is not a beauty......
