If you have caught them in time, you should be able to save a couple. Fandango is one that I have and I have noted that it seems to be a bit more fragile than some of the other heuff's such as Purple Haze. I worry about Fandango based on what I see in the picture as it looks like there may be some rot.
Immediately move the pots to a shaded area with bright indirect light and, hopefully, an area with lower temperatures. Give a
small sip of water every couple of days and pray. Important: Do not apply water directly to the plant but beside it and make sure that the soil dries out for a few days between each watering. By "small" I mean a few drops of water applied near the plant. Seriously, don't overdo it.
Your plants have been highly stressed and need the water and shade from the sun. However, because they have been stressed, they are very susceptible to rot and mold at this time. If necessary and you can, bring them inside to a bright window that does not get sun and is a cool spot for a week or two.. They need a chance to recover more than they need a lot of light at this time. I would not transplant or move the plants themselves (leave them in the pot). The exception here is that if you have a singleton rosette not part of a cluster and you see it rotting, then you should immediately remove it from the soil and let dry for a few days. Try not to disturb the other plants if you do this.
I think you may lose your Fandango and a few Purple Haze, but it is hard to tell for sure from the pictures. I think, however, that there is a good chance of survival with some TLC.
