Carolina custom kits does a nice laser cut 54" Telemaster kit ( other sizes too ) specifically for electric power. They furnish a list of all nessesary hardware and power package.

Hydro. Just to point out how confusing electrics can be. In your example you state that for the Kadet you would need around 500 watts of power output. However a 35 amp ESC powered with a 3S battery is only going to deliver just under 400 watts. Your example of motor, battery and prop would require a 50 amp ESC. Not picking on you just showing how difficult it would be for a beginner with zero experience to do a conversion from glow to electric.

Jester makes a good comment about there being many threads on electric conversions, however how does a beginner know where to look? How does he know what thread has good information? I think we can be a bit more helpful, maybe posting up links to these build threads?