What's the original and discounted price? That should make it clear.
Drop the FD from model number 40287H is a Black shell cordovan NST tanker boot on Barrie last
Try this link:
I don't think anyone can answer as definitively as you would like. I could work, but may not. I wear 8.5D TTS and an 8E was sloppy feeling on my foot. Others don't seem to have a problem interchanging the D and E widths depending upon sizes and lasts. Aberdeen is the "tightest" last and it just doesn't work for some people. Try on the shoes in person. If you can't do that then be prepared to gamble.
The BB shell blucher on the M-58 last is a little tricky when comparing it to the barrie last. I go with the same size in barrie, but the M-58 last will feel significantly more narrow and trim. It fits my foot perfectly in 10.5D. The same size in barrie is a bit wider and rounder in the toe box, but the length should be about the same. If your barrie size is snug, I would size up 0.5 with the BB shell PTB.
All the best...