MRC Pro Questions

[netsurfr]

So I'm new to the whole rock crawling thing. Bought a Micro Rock Crawler & love it so now I want a Mini Rock Crawler to play around with (no comp) but I came across the MRC Pro and basically see a couple of features I really like compared to the standard MRC & wonder if that's the routeto go or if that's just more than I would really want/need so hoping for some feedback from you all on this.

The features I like about the Pro are:

1. Near Zero Ackerman so much better turning radius
2. Ability to put in a stronger motor which would make it go faster if I want to
3. Extras like the springs, metal diff lockers which seem to be upgrades people make anyhow

So my question is are those 3 really worth the extra price for a non-comp play around the house/yard crawler or should I stick w/ the MRC?

Also can I install any of the aftermarket bodies on an MRC Pro like you can in the standard?