replace sliding door

I want to replace my sliding door. This is for cosmetic reason after a minor accident. I was thinking about buying it at a junk yard and doing it myself. Does anyone know if this is a DIY project? It looks like the door is attached to the roller mechanism by 3-4 bolts.

It's not something you can do alone, but with a helper or 2 it's a perfect diy project! Alignment may be an issue, but that's what the helpers are for! Lol!
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