@saraw we usually do not recommend places on where to buy parts unless they are proven vendors like iFixit, Mouser, Digikey etc,. Anything else is usually very subjective and easily can lead to spamming. As for can you do this yourself? Absolutely. Check [https://www.youtube.com/watch?v=XXLnGo9hyTg|this video] as well as something [https://www.youtube.com/watch?v=yo4irp_Q13o|like this] Both should work for your model as well.
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If nothing else here is the document dealing with the front and rear bumper of your model [document|5529]
@saraw we usually do not recommend places on where to buy parts unless they are proven vendors like iFixit, Mouser, Digikey etc,. Anything else is usually very subjective and easily can lead to spamming. As for can you do this yourself? Absolutely. Check [https://www.youtube.com/watch?v=XXLnGo9hyTg|this video] as well as something [https://www.youtube.com/watch?v=yo4irp_Q13o|like this] Both should work for your model as well.