Just got a chance to test it and it works great. Though you said it took longer than expected, you still managed to get it done within a day! I think this currently looks as good as it can, if you have personal preferences as to order its easy to make edits yourself. Enjoy your well earned break.
Knowing now that this is possible, another cool idea but probably even greater pain to implement is to have livetiles for items. Then you'd reduce the amount of clutter due to the variations of mks and reskins. I'd be willing to help wit the the grouping of the items if you're eventually up to it.
Understandable. On a different note, I was trying to install some modded missions from a pack through the framework and I got an error for like half of them. I moved the scoring folders so that only that content pack would be applied.