There are multiple ways we could set up the identification page; either someone with extensive knowledge about scripts writes up a general guideline for the different types of scripts, or we slowly build up a repository of identifiable character components based on already existing questions in Chinese SE. Ideally we'd have both.
A page with searchable components allows people to quickly CTRL+F their way to appropriate images, then the questioner can build what they've interpreted as the component themselves, and if they still have trouble identifying the character they can show their attempt in a question.
My idea to start this process is to re-open closed questions on character identification and provide an answer detailing why the images are read as they are. I'm voting to reopen this question, where I'll post an answer which hopefully helps the identification process, and we can make our way slowly through the rest of the questions?
We could also have a section listing all the script identification answers made so far, so that users can get a feel of what the identification process looks like, further contributing to a guide to identify characters.