What Empire Knightly unit profile should I use with Blood Knight models?

Hey y'all!

A year or so ago I bought some empire models on ebay in anticipation of the Old World Release, and for a year I've been debating what kind of Army I wanted to build. I've gone between a few ideas, but I think I've finally settled on a good, fun theme: An Empire Army from Sylvania, lead by an Order of Blood Knights.

Plausible deniability is the name of the game here. Sure, these knights look a BIT eclectic, with pallid skin, some strange ancient heraldry and distinctly evil armor, but what Knightly order isn't just a bit strange? Those peasants also look a bit green... well, provisions on the march arent always the greatest, plus they're dirt eating peasants, that's just what they look like sometimes! I think this is a fun way to run an "Official" army, using models from 2 ranges that I really like. The Empire's whole aesthetic is gorgeous and I LOVE the blood knights.

Blood Knights are going to be the main focus of the army, because they're just gorgeous models, but I'm not sure what unit to run them as? do I run them as Demigryphs to show they're not just average knights, or do i run them as a big block of Inner Circle knights? Also, what knightly order should I proxy them as? Knights of Morr get Fear (And terror with the banner) Which would make sense given their nature, but Knights Panther get great Charge bonuses, which would show off their martial prowess as centuries old warriors... As the Centerpiece unit of my army, I want to make sure these boys are properly represented! Thanks y'all!