I'm thinking about converting a Wonder to Astro 020 electric power
A pilot at our field converted (or perhaps created) a Wonder to electric. Not sure what he had in it, but it turned a 9x9 prop and was a rocket. I have a .25 OS FX, but it only had a 8x6 APC prop and wasn't able to keep up.
He stuffed all the batteries forward of the CG and created a little hatch in the top/front of the fuselage to access the batteries.