Mossbadger Chiropteran Garden JSK ins a plus size.  This has been worn twice, and has both back shirring and a side-zipper for easy in/out.
Here are the measurements that i took:
Chest: 42"-46" max
Waist 36"-42" Max
25" from waist to bottom of dress.

Lovely dress in excellent condition.  Shipping is Fixed at $25 in the USA for Priority Mail.  I will refund the overage if shipping winds up being less (it generally does).