GoAnimate or PowTown animation

I need freelancer who can make a Video presentation of our services . We will provide the script ( to put in every sequence) , text, and speech(voice over). You are only going to do Animation and Assembly It´s a requirement that you have to make the video/animation as a Template, in an account i will give you, so later i can change some text and generate others videos. For us to consider the applications is an absolute MUST to indicate the following: - What platform would perform the template ( or GoAnimate PowToon ) . - Show me Samples Previous videos made therein.