I would go full tune as I think the soft mattness of the deda doesn't look quite right and in my head it makes sense to have a different brand bars with tune seatpost/stem than deda kit with 3t bars. for one thing because deda make great bars. edit just seen you have chosen a stem, my bad.
The Deda superleggero is looking like a popular choice. I've just found 3 other builds using this combo
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