Vanda markings

[Longroots]

I bought this vanda about a month to 6 weeks ago, and although it is in FAR better condition than whats left at the shop I bought it at, it has suffered some problems:

I believe I've eradicated the spider mite it had by double dosing with Pyrethrum 5ec, 3 times, and rubbing the leaves with isopropyl alcohol 70%. It did suffer some sun bleaching as it was quarantined outside and the UK this year has been very bright, in hindsight I'd have quarantined further underneath a tree for shade. It has recieved small amounts of fertiliser, rainmix mostly and is watered every other day in the current setup with bark chips in a hanging basket, sometimes every 3 days if the bark hasn't quote dried out at the bottom, the roots on the outside of the hanging basket I planted it in are sprayed daily however, often twice.

Unfortunately, the sun bleaching and pyrethrum I think started a small bacterial browning which seems to have slowed down now, and I know it won't regain the colour of the leaves, but wondering if it is now safe to add to the rest of my collection. The brown marks aren't actually squishy or smelly at all, if I closed my eyes I couldn't tell where the brown marks start and stop. As it is starting to get colder I'm hoping to get it under proper grow lights and lessen the temperature fluctuations as I bring it inside over night, but it is still colder where it is stored/quarantined. I sprayed it with a fungicide, Provanto, but unsure if it did anything as in the UK, 'cides are generally terrible and ineffective.

I did virus tests when I recieved it and it is negative, so it doesn't have anything sinister like that.

Should I introduce it to the rest of my orchids? There is a risk to dripping water. You can also see the difference between the sides, the attached pictures were taken on the same day, they're just opposite sides of the Vanda