There's a few tools you'll need to install a split though that's the only bad thing,
You need good quality copper pipe which you can either buy pre flared with insulation, or you can buy the flaring tools and nuts to do it yourself.
The Annealed Pair Coil is made to the highest standards conforming to AS/NZS1571 Copper which is a seamless tube for Air Conditioning and Refrigeration. AS/NZS1571 Copper.
www.ebay.com.au
This is probably the easier way
https://www.starsparky.com.au/produ...UQRuK-fAVSRroLKiDbfyL5pCqT9wjFnCInNelGWeUjKaJ
Then you need a vacuum pump and some gauges to pump it down to see if it holds pressure before releasing the refrigerant into the unit.
A pipe bender helps if you need to bend 90° angles etc
And some electrical cable rated for like 15 amps should be good.
Where I am they charge ridiculous amounts to install, I'll probably pay someone to go over the big one though.