The Conversion?

[BrianG]

Cost? Well, it depends.

How much do you want to fabricate yourself (motor mount, esc mount, battery tray, etc), and how much do you want to buy off the shelf (conversion kits)?

There is a sticky in the Revo forum made by yours truly that shows how to mod the transmission, or do you want to go the "easy way" and shoehorn the ERBE transmission in the stock chassis (if it's even possible)?

Then, you need to get a motor, esc, and battery setup. Which one you get will depend on how fast/powerful you want it to be and how much you want to spend.