There are still some step(s) missing before. When following my description, I’m not ending up with a SEPA document.
Though it might not be necessary for you, being an expert, it is required for understanding the process - as this is what many people might think.
While I understand you want to have high quality content: The requirements are quite demanding, and fulfilling them is very time-consuming. This is quite a huge hurdle to take. I’m actually rethinking whether I should spend more time on this How-to if it’s on danger to be put on the huge pile of never-finished documentation just because it’s not meeting 150% quality requirements.