Not sure what we're calling a drop here but for the sake of comparison my military kilt is 26" total length. Now, I'm 6' and I wear that kilt high to have it land mid-knee. Photos are over in pics.
So, my guess is you'd have to be about 6'4" to wear that properly.

So take some pics and let's have a look.

(BTW, Military Gordon is one that people will question your right to wear it, blood was spilled, etc. Something to be ready for, the rest is up to you.)