Building my first DVS set

Yes you are all set and your setup description sounds solid.

Here are some things:

The reloop stylus are made by Ortofon which IMHO is the best stylus company for DJs. They sound good, not audiophile, but good (which is all you need for DVS) and they are very reliable and hold up quite long even with prolonged use.
I would get a spare kit of 2.

Also: Get 2 spare slipmats (I think 2 come in the package of the turntables) and 2 spare control vinyl. As a beginner you will probaly kill a control viny quickly at first 🙂 and the cheaper Serato control vinyls are only like 10 bucks.

Then I can only say: Have Fun!

Well if you scratch a lot and I suppose in training you will, then by constant scratching at some point there will be a tiny tiny thing chiffing off the slipmat. This is the “slipmat cancer” fron this point on more and more will start to scourge off make fluffy balls under your vinyl etc. until it does not have “the slip” anymore and you want to replace it.
They are also rather cheap if you do not buy licensed Star Wars or Marvel slipmats (which nobody can see when the vinyl is on there)… so to have a pair as replacement is always good.
I have no idea why, but some people I know need 3 pairs a month and some others have them a year… prolly depends on your “pressing style”.

You’ll also need to balance the tonearm. It’s not difficult (just google it, there are tons of links). It helps to prevent skipping etc. I’m not an expert, but I think you need different setups depending on what you’re going to be doing (scratching etc).