CDJ 900 DJM 850K RMX 1000 - traktor in HID?

Hi I have the above set up, now the 900s can accept the advanced HID I want to route them into Traktor. First question...

Can I just use Traktor 2.5.1 and not traktor scratch pro.. I presume as I won't be using time code the standard TS will be fine?

Secondy, as I will want to route audio through the DJM 850, will this work witn the standard TS 2.5.1 or again as it is Traktor scratch certified should I be using TSP?

Ideally I want CDJs controlling TS 2.5.1 audio through DJM and out to RMX when I want... Is this set up do-able? I have had problems getting the audio right in Traktor before and getting sound out both speakers etc...

Cheers...