Djm-750 questions

Hi there, as the new 750 mk 2 is coming out I am looking at purchasing the original 750 mixer, I already have all the licences but what I need to know is
1st will this work as a soundcard with rekordbox dj, if I am using 2 cdjs in HiD mode,
2nd can I use this with DVS (with my DVS Licence)
3rd can I midi map the sliders with my rekordbox video

The only mixer that shows support with rekordbox is the discontinued Traktor DJM-t1

I understand the 250mk2, 450, 900nxs and all the CDJs with usb are supported but these are not listed on the support list or features list for rekordbox DJ