What to choose: Hyper 10SC or SCRT 10?

[JoFreak]

Has anyone an idea if there are any pinions included in the kit?
And if so, which ones?
Guess the diffs are 43/13, but the CD? 46T?

And what speed should I gear for?
And what's the tire diameter on those SC trucks?
What pinions can I use on the vxl-motor (with 2S) that have mod1? Are there any or do I have to use an adapter for the shaft?
Apart from that, I start wondering if it were better to put my MMM/2650kV system to use in the SCRT10. I mean, it has the dimensions of a regular 1/8th truck. Driveline should be similarly too. But what should I use in terms of battery then? 4S?

So many questions...

Edit:
And what servo arms/horns are included? One for every type of servo? Non at all?
Have to say, the information policy of hongnor, ofna, jammin, jamara, whoever regarding their products is quite "poor"...