Get a Serato controller (even a Beatmix etc. will do).
Get the Serato Flip package.
Get a Serato Flip controller (a reloop Neon, else you will have to map yourself)
or
Get a Traktor Control S4 and a Traktor Control F1
Both can do multisampling and remixing. One by the use of Flip on the Fly controls (Serato) and one by use of more traditional remix decks (Traktor).
However I would VERY MUCH advise you learn all the basics of DJing before even attempting this, the learning curve is steep.