/cgl/ - Cosplay & EGL

Hey guys, I'm just getting into a little bit of historical costuming, and I was hoping to get a little bit of feedback before I proceed here. I've just started patterning a pair of mid-late 18th C half-boned stays for myself using this tutorial, and incorporating advice from other guides.
>http://www.marquise.de/en/1700/howto/frauen/18corset.shtml
I was thinking of modifying the straps to mimic what has been suggested by American Duchess, using twill tape to make crossed adjustable straps, as here.
>https://youtu.be/w3ASo310lak

So far I've put together 2 mockups made of cling wrap and masking tape on a mannequin padded into a cony-er shape. I'm not at the fabric stage yet. Mockup #2, pic related, is far from perfect, but it's helping me figure out sizing and strap placement. This mockup doesn't include the "tabs" that keep the boning from digging into the waist, but the next will. My next planned step here once I finish making the pattern symmetrical, is a mockup in shitty fabric.

I thought I'd start looking for feedback early, since the stays are a pretty important part of the outfit. If I fuck this up, the rest will be fucked up.

What do you think of my plan, pattern choice, and first mockup?