if you're low on budget. moonlight hat will do. its +4 agil and +5 defense.
other than that I say kaho or valk helm with a gryphon card.
You know he said card right?
Anyway, gryph or BK if you're already using them on middle DI for DI/DL combo if you have it taken up already, anyway I don't think you would use those if you could afford them due to kahos. Low budget version: Use grand peco, it does give a small chance to use gloria which is +30 luk I think? and that chance increases with it's peco peco matching card which would also get you vit and def +3. Holden card gives +2 luk, if I remember correctly @_@
I'ma bit off I would usually if I couldn't think of one go with gibbet for the mdef or myst case for the gift boxes. They're common and cheap o,o
Otherwise, I'd say drop the slot headgear entirely and work for a moonlight, baseball cap, or (the other one whose name I can't recollect but it adds luk as well as agi.)