PC on Sundering Butterfly Sword of Swordsmanship

PC please on

Sundering Butterfly Sword of Swordmanship
Slashing dmg 14-21 req 8 swordsmanship
14% dmg while in stance
10% armor penetration (8%)
Swordsmanship +1 while using skill 17%

thanks

I tried to do a PC on a Brute Sword that was not max 15-21 with +14% while enchanted, etc. nobody replied quickly and when they did, they said sell it to merchant or use it yourself, but nobody will buy non max items. Thats what they told me.