I will leave here everything you need/want to make a great build in DS1. Enjoy!!!

Summon Range Calculator:
https://darksouls.wiki.fextralife.com/Summon+Range+Calculator

Armor Optimizer:
https://mugenmonkey.com/darksouls/armor

Dark Souls Weapons attack calculator:
https://soulsplanner.com/darksouls/weaponatk

Armor Comparison and Best Armor:
https://darksouls.wiki.fextralife.com/Armor+Comparison+and+Best+Armor

DARK SOULS Character Planner:
https://soulsplanner.com/darksouls