RE: Best stock electric truck for wheelies
lunch box is a good canidate. cheap kit, and if you either gear the stock motor lower or install a slighty better motor it pops wheelies with ease.
As mentioned above, anything with a brushless system and a good battery(2s lipo is best) will wheely.
The wheely king can wheely, but stock you usually have to reverse and then peg the throttle to get it off the ground.