Neglected orchid haul- repotting advice needed

[Jodsbods19]

So I inherited these from my Hubby’s grandma. All in various stages of neglect. Trying to figure out how to repot/house/care for them all.

Photo 1 is the haul: 30 or so orchids!

Photo 2, I would love some help with an ID, the leaves are stiff like a Vanda, but not as thick as the ones on my tolumnia.

Photos 3 and 4, I am wondering if maybe these buds are going to become flowers?

But my biggest issue is repotting- none of them are in good media, some are in soil, others very broken down bark. The Cattleyas in particular are a worry, as even though several have started to develop new growths (the biggest would be about 1cm long), I can see that all of the newest roots have been munched off by snails. I’m in Australia, near Sydney, we are nearing the end of winter, so not sure if it’s a good time to repot, but I don’t want the new growths to have their roots munched! When would be the best time to repot (in an ideal scenario), and when should I repot to protect the new roots?

Also, one of the Cattleyas has grown so that there is no space for it to grow a new shoot, as the wall of the pot is right up against the newest pseudobulbs.

Any help would be appreciated!