I started a similar format for myself, close to what you have proposed but maybe as general rule of thumb can do box, cart, manuals across the top then do bag, sleeve and foam. Maybe do a third row to show specific inserts to generic inserts left to right. I just keep a second word doc with all games with all codes for each piece written out where I notate the sleeve, rough condition analysis of my own and any condition issues.
I have invested too much time into how I’ve been cataloguing to redo anything format related right now lol but that’s just me. Here’s what I do for some of the weird ones with extra stuff. Capcom is chock full of inserts.