Here's the link to HLGs Amazon store. There is a DIY section where they list out various parts you can use. Probably some cheaper and/or better choices on Amazon or your local hardware but I've just used this a few times when I didnt feel like hunting.
You are definitely going to need some 20awg solid core wire, and some Wagos for connecting the wire to drivers.
Do you happen to have any old PC power cables lying around? You could chop the end off one of those and use to connect to the driver for your AC side (wall plug). If you want to you could get the barrel style junction boxes to connect that cord to driver (a little safer) but you can get away w wagos for that too.
If you get the A version of the drivers, the dimming is built in. Although its a tiny plastic screw that is easy to strip so if u plan on dimming on a regular basis, get the B version of the driver and then grab one of these for each driver:
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rapidled.com
Depending how/where you plan to mount your drivers, you also might want to get some flexible braided 18AWG to run between the drivers and boards (like if you mount your drivers outside the tent or garage which isn't a bad idea so it doesnt add that extra heat).
Last but not least u need to hang them. U can use cheap plastic coated wire, chain link, hanger clips whatever. Or maybe easier like suggested earlier to build an aluminum or wood frame, and then hang that.
That should be it I think!