My thought is more simple than that....find a solid RLI calculation or indie, and simply add the widths we see on the good SDC indie we have, saving and/or updating an array as we go, and then compare it against the price.
I'm working this afternoon too...
From "Something to Talk About"...
{Man}: "You Southern women sure are easy to please"
{Woman}: "Comes from centuries of being bred to keep our expectations low."