Street Jam R3R

Hi Jimmy,
Want to know if has stock for R3R.
if to buy a set including transmitter, servo, motor, ESC, battery & ETC, any recommendation and how much?   Medium to high grade equipment is okay.
I left for RC for more than 10 years, become a beginner and non sense now, thank you.  

Hi Jimmy,
Appreciated your detailed information, it's very helpful.
when will the red color edition arrive and available in your shop?  eager to get it soonest, thank you.

One addition is do you have stock for R31 and how much?