Reply to Setup problems

Hello from Belgium to the international dj community!

I'm having huge dilemmas when talking about gear, I know what kind of setup I want but I sometimes can't afford it, have already a bunch of gear I was given by the person who introduced me to djaying but used to do it in the 90's.
So here it is, I have numark CDN-88 (I know they suck, I began with them), a gemini pro scratch mixer with broken faders and knobs and a pair of denon dn S3700. What I do is mainly scratching and spinning hip hop for me and my rappers friends to jam.
What my dream setup would be is a mixer with an integrated soundcard and a pair of technics plus an mpc-like controller to produce music, but we all know, it's not going to happen.
So I firstly want to buy a mixer with an onboard soundcard that doesn't ruin me plus a nice controller with which I can produce a track from A to Z, all of this in a reasonable price range. Plus I'd like not to change this setup and buy this gear and not change it (only minor details), I want to buy it all once and have fun with it and not have to change anything when new controllers and stuff like that come out.
I keep reading reviews and watching videos about this mixer and that one and how this is crap and this one is the best but I change site and it's the total opposite, so I hope you guys can give me some useful piece of advice.

I already thank anyone who will read this until the end and give me an answer !