Is it possible to get 2xcdj 900nexs, 2x technics 1210s, all working on rekordbox 4 deck performance mode?

 HI

I have 2x cdj900 nexus, 2x Technics 1210 mk2 turntables a djm 750k mk1 mixer, a switching hub and a laptop with the free version of rekordbox 5.2. 

what I want to do is get it all working together, so my plan is to buy the interface 2 witch will come with the rekordbox dj and rekordbox dvs licences as well as the 2 timecoded vinyl, so the interface will unlock the mixer and the turntables and the cdjs will plug into my switching hub then out to my laptop with the hid link.

so ill then be able to use the rekordbox 4 deck performance mode?, 2 cdjs for say deck 1 and 2 and the 2 turntables with the time code vinyl for deck 3 and 4 and the mixer will work the mixer on the reckordbox software on the laptop and then I can just click the effects and functions I don't have on the mixer and cdjs on the laptop??

can u please tell me if this will work before I go and buy it and if not how would I be able to do this and what would I need

Thanks

Rich