Here are some photos of my Bazooka conversion. It is a real brute.
I already had most of the equipment so the conversion cost me only $14-- LOL (for the motor mount). I fabricated (aka Hacked- I'm not proud) the rest from existing parts. For some reason the motor mount did not properly fit the existing holes in the chassis (though it was claimed to be a Himoto-Bazooka e-mount). So, I had to use the Dremmel and slot two of the three holes that fix the motor-mount/center-diff-holder to the chassis. Never fear, it is rock solid.
Kyosho has some ready to run kits for about $400, so yes, it is likely cheaper to just buy one already done; But making the jump to electric is going to cost some cash no matter how you slice it. You will need a charger and batteries, plus an education in ePower, and that's no small task. I have no regrets and don't miss nitro in the least... at least for now. I like the Himoto buggy, it is tough and well built, BUT it is a chore finding parts.
Mine is 5S (because those are the batteries I had around from my Helis), but I can say for sure it runs well, and it runs very cool... this motor hardly gets above room temp no matter how hard I run it, even wide open through the back yard for an entire charge. With these knobbies I can out-run my sons eMaxx, even in the grass and it is no slouch... able to pull big wheelies, even at speed.
My pinion is a 13 tooth , these are MOD-1 gears , and it just so happened that the gearing is about perfect with the stock ring gear, 13t pinion, an 1800kv motor with 5S battery packs. At least it's perfect for the type of bashing I do.
I set up a carpet track in the basement... try that with a Nitro!
It weighs a ton using my heli packs (hit the scales at 3600 grams), but who cares? My run times are about ~20 minutes.
If I had it to do over again, I would spring $50 for the Kyosho EZ eMotor mount, as it allows for different size pinions. The motor mount I am using only fits with one size pinion, and It just happened that I had the RIGHT pinion for the voltage and KV of the motor I was using.