Lore accurate Drakeblood Knight build?

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While waiting for Elden Ring, I think I want to come back to DS3 for a bit. I'm planning to make a Drakeblood Knight build, because I've never made the Drakeblood Greatsword ever work for me. But, I want to make it accurate to the lore, if possible.

After doing some digging I think I've got some stats:

- 50 or 27 VIG
(The DK in Arcgdragon Peak has 1300 hp on NG, which easily translates to 50 VIG. If that's too much, I think alternatively 27 VIG is also good. It gives you 1000 raw hp, 1300 when embered)

- Base Attunement
(We don't see him casting any spell)

- 27+ END
(The wiki said that he can swing his greatsword up to 6 times consecutively. From soulsplanner, a one-handed swing costs 25 stamina. 5 swings would cost 125 stamina, which translates to 26 END. Considering he can swing it 6 times, we can assume he's got 27 END or more)

- ~26 VIT
(You need at least 26 VIT to wear the full Drakeblood Set with the shield and the rings found in Archdragon Peak, which are the Calamity Ring, Ring of Steel Protection, and Thunder Stoneplate Ring. Maybe VIT needs to be adjusted in case you want to wear other rings)

- But what about STR/DEX/INT/FTH?
18/16 is a no brainer because of the requirements of the weapon. But I think the DKs also have high FTH, considering the whole dragon blood thing. Also, can we assume that the "land long forgotten" where Sir Yorgh came from may be Lordran? I don't know if Sir Yorgh had ties with Gwyn about the whole dragon slaying business. But if he did, I think 18/16/Base/40 would be a good start, with lightning/bless infusion. But the DKs are also skilled swordsmen, possibly they are refined in their technique and have a quality build.

What do you guys think? What about the rings? I'm planning to use the rings found in Archdragon Peak (RoSP and TSR, no calamity, Knight's Ring, and Sun Princess if I want to infuse bless). What kind of rings would they lore-accurately wear?

To summarise:
50 or 27 VIG
Base Attunement
27+ END
~26 VIT
18 STR
16 DEX
Base INT
40 FTH

Edit: I aim for SL90 if possible. I think that is where we'd get the most player traffic.