help needed with "rescue plants"

[kavanaru]

Hi all,

I recently bought some plants in a public sale (the one where you can buy items from people who died and had no family to take over the stuff, or people who went bankruptcy) I bought a couple of orchids (for about 10$ all of them together) that have been receiving not enough water for a long period:

a) 3 Catt type which are urgently needing to be repotted, but are in more or less good conditions.

b) 2 Cattleyas (mosiae and loddigesii) which are obviously strongly dehydrated. C. loddigessi has new shoots and is startingto produce new roots. C. mosiae has only 3 PB and roots at all...

c) 1 Psychopsis Kalihi, very dehydrated, but producing new roots and new leaves too.

my questions/concerns:

a) this group is fine, they only need to be repotted. I will just wait a bit until they start rooting again. Is this a right approach?

b) What do you recommend in order to rescue this plants? This is the biggest challenge, and I would like to be able to say in a couple of years: these ones were almost dead and now they are flowering

c) Should I proceed as with group a)?

furthermore, once the leaves are strongly dehydrated, will they ever recover and look healthy again?