Sorry for being dense, where does the drawstring go?

Edit: Nevermind, worked it out.

Brisbane, Australia.

I'm looking to pull the trigger on these but I'm trying to make a decision re: hemming. I'm in Australia so I'd like to get them hemmed before I get them to prevent shipping back and forth. My favourite pair of canvas pants has a 29inch inseam and given there are only 37inch inseams left in my size (36W) cuffing potentially 5-6 inches of heavy denim seems like madness.
From what I've read in this thread around 1.5-2inch extra inseam is a good idea, so i was thinking of having them hemmed to a 32inch inseam which will either crumple to fit almost perfectly or leave me with a reasonable 1-2 inch cuff. Appreciate any thoughts.