Really like the more classic shape - good choice to revert I think.
So I am not wanting to interfear with your design chioces, but as someone who used tilt bobs for nudging for all of about half a day I would just like to quietly suggest they work about as good as a chocolate tea pot
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Tilt bobs are great for tilting but not nudging IMHO, personally mercury switches worked fine for me but then I experimented with a sidewinder joypad and have not looked back after getting a taste of anologue nudging.
Anyway like I said i`m not wanting to intrude on your plans but wanted to relay my findings and threw together a quick vid...
And man if you think you are low on space, trust me its way more than me you lucky thing.