Failings i should expect for ender 5

[Aris]

Hi everyone,
Just a month ago I got a new ender 5 pro and the poor thing has been working 24/7 ever since. I am a sculptor and the waiting line for printing is huge so I don't expect it's use to slow down any time soon.

What I would like to ask the community is this:

With such heavy working, I assume that sooner or later something is going to fail (belts/cables/whatever) and I want to be prepared with spare parts.
From your experience, what are the most common failures from wearing? what parts would it make sense to have readily available?
What is the expected wear for a machine working like this?

It is a priority for me not to 'halt production' just waiting for a week for some part to come through mail.
I even thought buying a second printer just for parts. Assuming that the first one will be working for years, maybe it would be cheaper on the long run to pay once for a second printer than accumulating overcharges/shipping fees from parts. (I haven't investigated this, just a thought)
Any input would be helpful,



Thank you!