How big, Mine is sitting in the bed of my clodbuster There are about 1/3 the size of a 1/10 and there listed as a 1/30 scale.
The price, Look over on
Mini Z Racer and click on the readysets up top of the page. look for the dark blue tags. The SE comes loaded with some nice parts and it costs more, but worth it. the readysets come with the TX and all. All you need to add is the batteries, 4AAA for the truck and 8AA for the TX. And you can use the TX to run larger RC's with, I've used mine to run that clod with. All I needed was the 27 AM RX.
As the saying goes, "Own one and you will understand." Corny, maybe but with these things it's true.