Touchpad replacement - Razer Blade Stealth 13 (late 2019)

Hi all, I've just bought a used Stealth 13 which has an issue with the trackpad -

The right hand side button action doesn't work and the touchpad is visibly sunk on that side. Further, using the left-side button action (when pressed firmly, for example when clicking and dragging), results in the majority of the lower and left region of the touchpad becoming totally unresponsive. Interestingly, picking the laptop up and gently moving it from side to side seems to restore functionality of the touchpad, and there is a tiny rattling sound from inside when i do this.

I'm guessing whatever holds up the lower right side of the pad is broken. Why the left button causes the pad to stop working on that side is a mystery to me, as is why moving the laptop about brings it back to life.

Anyhow, I'm wondering 1. where I can get hold of a replacement trackpad? 2. whether it's going to be tricky replacing it? I'm quite savvy mechanically and have tinkered with laptops before, but ideally a dismantling or repair guide would be handy.