Temperatures are not a problem with good quality electronics. I also live in Spain and summer could be 50C in my garage and 75-80C in the electronic box. No problem so far.

Biggest concern should be ATHC/torch height control/ and at what speeds you will cut what material, cause for very thin material you could need faster speeds than stepper will provide. Depends how you move all of course, what type of bearings and how heavy.