Need some help finding good replacement pieces.

Alright, I've got this old thing that was given to me by a family member to try and repair last time I saw them, unfortunately, said family member has since passed, making this computer, the last thing they gave me.

I want to repair it, I was already working on it and such, but now I feel even more determined to repair it.

I've figured out some problems already, my main issue is getting replacement parts from a good source, I don't want a battery that dies in 20 minutes for example. The problem is, this is something that was made over a decade ago, so kinda hard to find replacement parts.

So here I am, hoping that you guys with your wonderful knowledge may be able to help point me in the right direction at least.

The computer itself is a G73SW Model, the battery is long since dead, the charging port is dying, the charger's protective covering is cut, exposing the wires(dog and 2 cats in the house). Not to mention the keyboard, which is, well, let's just say it's in pieces. The touchpad may also need to be replaced.

All in all I need: Battery. Charger. Charger Port. Keyboard.

I may have managed to track down a charger and battery, but I want to make sure that CanadaLaptopBattery.com and LaptopParts.ca are actually good before I get anything.