Yes, you are wrong You need a custom delegate that will render the data fetched from a single item using different item roles (like the text, icon, etc. - your custom roles included).
So, I can use existing model classes, existing view classes and I only reimplement delegate class?

And to be honest, I'd do it completely differently. I'd have a table with three columns and simply span appropriate rows across all columns.
The problem is that this table must be wide as little as possible, because on 17" touch monitor I am very limited with its width. About 90% of desktop (from 17") there is a some operation window. But because your ideas helped me a lot, can you provide me some screenshot, what did you mean by quote?