If I may make a suggestion first and formost for a first or second plane its very often a mistake to be trying to reinvent the wheel doing electric conversions. Its even worse when its a first airplane and for some reason so many new flyers all want to redesign their trainers. There is nothing wrong with making conversions and it can be fun as well as a challange but not at this stage, very often ends in something less than successful.

You will be better off financially and less frustration if you stick with the propulsion system that is designed for the airplane. If you want electric then great, choose an electric airplane for now anyway

John