[Help] How can you change a lord's size

[Vashanesh]

I've finished working on a mod for Manfred (badass armor, 2-handed glaive, the works) but for the life of me i can't figure out how to change his size.
I'm looking to make him at about the size of a crypt horror or a chaos spawn (with the adequate changes to his hitbox and movement speed) and put him on workshop as a proper campaign Vampire LORD - emphasis on the word LORD (not the barely armored, whinging little runt he is now).

Using PFM (Pack File Manager) and Assembly Kit.

If anyone can help i'd be more than willing to offer a digital beer and manly clap on the shoulder.

Thnx all.

[Cyclone Jack]

I believe that is variants.