Bard Bang for the Buck

[somnia]

I'm a level 40 bard.
I'll likely AoE kite to 60.
I have FBSS, cultural armor, breath of harmony, harmonic dagger.
My other slots are filled with standard issue equipment in the 1k-5k range.
I have 100k.

Aside from obviously buying nice instruments, what higher-end gear should I invest my plat in? Take into consideration overall usefulness, best-in-slot, depreciation speed, etc, etc, in your analysis. In other words, I don't see a fungi as incredibly useful to me given I rarely take damage and price is rapidly falling on it.

Go.

UPDATE
I bought a few items:
Naggy Drum, Vox Horn, Crown of King Tranix.

What else should I buy yo?