Thanks for the Lead.
I found the thread you referenced
, but the Kenmore 8.8 wasn't listed.
I did find the below from user RedRocket:
approx. inner dimensions: 16.5" width x 35.75" length x 28" deep
approx. hump dimensions: 16.5" width x 11" length x 10" deep
Which interestingly enough was in the first link in my original post.