Here you want Status resist, Ribbons work, Flawless or the lv51 one that resists all status effects. Don't underestimate this undervalued head gear, it really works well, that stacked with the correct bar spells is enough to make you immune easily to almost all dynamis and limbus status effects with a decent margin of error.
That's about so far all I've bought and yes I'm using bar spells with enhancing skill+ gear on to add a few extra points, then switch back to mind gear. I'm subbing WHM for the fact I can JA Accession and give stoneskin which helps me better with any GA's that might come out.
So far I got maybe 30 MND w/ food, my bar spell gives me about 84 with enhancing gear swapping i have no MDB gear on but I was offered a Diamond Earring or two from a friend if the +10/11?? resistance to wind (silence yes?) will help, I put barsilence on as well. I got the ribbon, I'm just trying to figure out everything that I could be missing.
You're right the ribbon was only 5k when I bought it a bit ago, just looked up the quest for it as well might get bored and just quest it, so far it only seems I'm missing those diamond earrings and that's if that 20+ resistance to wind ontop of my bar spell and my curing macro switching me to the HQ Ice Staff while I got to cast NA's or if I'm giving out protect / shell. It's a temp boost to wind but it's there while I do anything that's not healing / resting. So if it hits me while I have my staff on casting a NA or..anything I should have 30 MND / 120-125 Wind Resistance. With the ribbon on me forehead.