Which medium for dehydrated Dend? Help!

[elaines]

Hi! I'm a bad orchid mommy.

I totally let my orchids dry out - more than ever before. I decided this morning to soak them in distilled water for an hour each to rehydrate the mix & roots. Oops. Forgot I'm not coordinated & my Dendrobium Banura Jade fell over onto the floor. All the mix fell out and the keiki (formed due to another incidence of not watering) on the tallest stalk broke off. I immediately placed Dend, its keiki, and BLC in distilled water to soften roots and rehydrate for emergency care.

The keiki has 4-5 small (1" or less) roots. I got orchid moss at Lowe's (some sort of sphagnum by Better-Gro) which is soaking now. I'll plant the keiki in that - as well as a barely-alive w/ 1 speck of healthy root BLC) and hope the 2 survive. I've read instructions on how to pot in sphagnum (soak moss, wring out, pot firmly but gently w/moss still spongy not tight) but will take any suggestions.

My biggest dilemma now is which mix to use for repotting Dend. Please help! I've got on hand:
-Better-Gro Premium Orchid Mix from Lowe's (fir looks somewhat in decay already but not toxically so)
-Repotme.com's Cattleya Classic mix (dried out and well-preserved for repotting the BLC when healthy and my phals)
-Repotme.com's Onicidium/Seedling Classic Mix (also dried out and well-preserved for a Wilsonara that I tried to save too late).

I've attached a picture of the plants' roots. The BLC leaves look awful - starting to yellow and puckered. The Dend is VERY dehydrated but has good roots (granted w/plenty of bad) but is a very resilient plant. Would have bloomed if I had watered it when the spike started forming.

Any help will be much appreciated!!! The plants have been soaking for about 4.5 hours now (2:45 pm Central USA) so I know I need to help them quickly. The moss should be about ready to use (soaked ~1.5 hrs now). I have no idea how long the Better-Gro Orchid Mix from Lowe's should soak. It's been soaking ~1.5 hrs now, too. The repotme.com mixes will need to soak if I use them. Since they're orchid husk chip mixes, I think they only need an hour to soak? Anyone know?

This disaster is my turning point. I love my plants and have been so neglectful of them. Even my plumerias are horribly in need of TLC.

Thanks for your help! I appreciate any advice!!!

-Elaine