I.Stim.
Code:
Beg, ch 26, sl st(27th ch)
Code:
2 hdc sc tog** shell, 24 hdc sc tog, 2 hdc sc tog shell, 24 hdc sc tog, sl st(at the 1st of the 2 hdc sc tog shell of this row)
** because I don't know what it's actually called.

It's definitely some 2 types of stitch bundled to one (about as 'long' as a half double crochet but twice as thick and 'wide' per stitch) but couldn't find it's name or exact description.
Code:
ch(keep this a bit loose), hdc sc tog, 2 hdc sc tog shell, 24 hdc sc tog, 2 hdc sc tog shell, hdc sc tog, 2 hdc sc tog shell, 24 hdc sc tog, 2 hdc sc tog shell, sl st(at the only chain of this row)
Code:
ch, 64 hdc sc tog, sl st(at the row's only chain) [Repeat 25 times. Or your desired width.], bind off.
Then...
Code:
Manually install zipper.
I'm new at 'writing' and 'reading' written crochet patterns.

I prefer visualizing it on the spot.