We're agreeing in different ways, if you get my drift.

A Fly Baby sounds like a much better candidate than a Graham Lee Nieuport.

325 pounds for motor and batteries on an aircraft that weighs less than 500 ready for flight is huge.

The bug engine weighs around 130 pounds (oil and accessories), and removing the ten gallon fuel tank gets one another 60 pounds. 115 pounds more might not sound like much, but one is going to reach diminishing returns pretty quickly on flight performance.

Not to say it couldn't be done - there are just better candidates for electrification, IMHO.