- ElSopa created a wonderful full replacer (textures and meshes) for most of the vanilla shields here
- deletepch created a standalone version (making these a sort of variant instead) built for his outstanding Loot and Encounter Zone overhaul OWL here <- this is required - my mod replaces the plugin but uses the way deletepch organized the assets (textures & meshes + forms in plugin)
- I made a vanilla (i.e. does not require OWL) using this tool + some hand edits to closely track the vanilla shields progression. i.e. these variants will be a random sort of treat you encounter randomly (I did not go and edit individual NPCs or outfit records - just the leveled lists). 
- I added an (optional for you) CCOR + WACCF patch which will map the recipes exactly to their CCOR versions of the vanilla counterpart, add the condition that e.g. declutter the crafting menu, add breakdown recipes, and tweak the leveled lists for edits that WACCF makes. I think it'll work for the original OWL version (I didn't change the form IDs of the shields but you'll want to pop open X-Edit and delete what I added for leveled lists so it uses the OWL version's instead)

FYI - the original mod was natively compatibly (without requiring) WACCF and I believe it uses WACCF's stats on the items. I use WACCF so didn't revert; differences will be small either way.

Credits/thanks:

• ElSopa for the outstanding assets in his HD Shields pack
• deletepch who has made a pile of great mods
• Gorgoth (& Yggdrasil) for all the work they put into Automated Leveled List Addition - makes stuff like this very easy
• Kyrptopyr, Teabag, DrMonops & co for the great WACCF and CCOR frameworks
• The very patient & generous regulars at the X-Edit Discord - Elminster, Arthmoor, yggdrasil86, ra2phoenix, SirJesto, Infernio, and many many others
• Double thanks to Elminster & the development team for the staggeringly great tool X-Edit - please support them if you can