Yeah, that vekta is a beast. Pricey SOB though. $1600 for an RTR:
http://www.davesmotors.com/KRAKEN-VEKTA-KV5TT-TSCO-TRUCK-RTR-KT7708-5TH-SCALE-TRUCK.html
Yep, all that +1. Also, 1/5th scale tears up turf pretty badly. So going to your local park and running it could get frowned upon after your tearing up the lawn. I ran fairly non-aggressive tires on mine, but it still would leave strips of bare dirt if the ground was damp/soft at all underneath...
The 5IVE-B is a kit that doesn't come with "kit" stuff.
You have to buy this stuff to complete it:
26-29cc Gas engine with Exhaust
2-Channel Radio System
(3) 1/5 Scale Servos
Receiver Battery Pack and Charger
Which probably puts it up near the MTX price, or close enough to it, that you should...
All I can suggest/add to this is figure out where you want to drive it and remember what it is.
I tried 1/5th scale once and wish I had either gone a different route or not tried it at all. I tried the HPI baja 5B SS.
Things to think about are that they are heavy and relatively slow off the...