Used Puma 1500 S Y

Hi,

I am looking at buying a used Doosan Puma 1500 SY year 2008.
But I'm not sure if I should walk away from it or not.
What is the life expectancy for a machine like this?
It has somewhere around 40.000 hours of power on and 19.000 hours of operational time.
It has been somewhat refurbished with a new hydraulic power pack and the Turcite or whatever they use on the box ways has been replaced.

Is there anything particular is should be looking at or testing?

I couldn't help but noticing that i could see wear on X or Y axis slide and could feel it with my nail. (see attached photo)
Is this bad ?

Kind Regards
Pat


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