Ecommerce transaction Tracking with Google Tag Manager

Hi, I have a specific and quick project for someone that is used to deal with Google Tag Manager. For a client, I need to set up Ecommerce transaction tracking on Google Analytics, so we can see all transactions done. We are using Google tag Manager to avoid touching the code. It's easier and faster.< I need someone to help me step by step to set up the ecommerce transaction tracker on Google tag Manager. Please note : - You won't have access to GTM. - You will have to write me how to do, step by step. Basically : Create new tag, when to fire etc... - Be available on Skype or Freelancer chat for support in case of. The project will be awarded today. The project will be validated and escrow released once the script is validated online. As the client hasn't inserted the GTM Code, it may be during next week. Please provide 2-3 website urls where you've worked on with Google Tag manager (so I can check that there is GTM inserted) Finally, insert the word #PSG at the top of your proposal to check you've read my requirements. Finally if you speak french / français, il would be an advantage, but not mandatary. Thanks you