Phal spiking new secondary shoots while having few roots?

[fukuchan5459]

Hi all. Here's an update on my phal that I had for about 5 months and have some dilemma that has not been solved/resolved. I have 2 healthy looking secondary spikes coming out of my primary spike. I noticed that about 50-60% of my roots were damaged/black, so I trimmed the old/decomposed roots to encourage the 4 new roots to grow.
The bottom 2 leaves are dehydrated, but the top 2 leaves are still holding up/in OK shape.

I am still very concerned that if I put the plant in a bark or moss medium, the roots may get damaged in one way or another. The plant can't support itself, so i staked a chopstick for support for now.

QUESTION: When should I repot this orchid with bark medium? I don't want to take it off 'life support' prematurely and get it back into the 'normal' condition.