Monnierara Millennium Magic Witchcraft- to buy or not to buy

[CatalinaC]

Hello everyone,
I've been growing a few happy phales for a few years and I've managed not to kill a Zygopetalum that I got last year...so you know a little bit about my experience with orchids...
I've recently got in love with Monnierara millennium magic witchcraft but I am quite concerned if I'll be able to give it the conditions that it requires. From what I've read it's completely different from what I have and, while I can adjust the watering/feeding, there is not too much I can do about light/temperature. The window is south facing so it might be fine, but I couldn't find anything specific about the temperature ("warm" meaning is not really clear for me and London is not a particularly warm place even in summer).
Is there anyone able to help me understand what I need, maybe compared to the species I already have?

Thanks.
Catalina.