Can I get another Rocky Helmet in Sword/Shield?

Question

I sold my rocky helmet from stow on side like an idiot, is another way to get it in my game

Answer 1

If you have the DLC, there are three total ways to obtain a Rocky Helmet.
 
Non-repeatable

• Southern Stow-on-Side
• North of the entrance of Potbottom Desert

Repeatable

• Cram-o-matic (72-80 Rock points)

Rocky Helmet (Bulbapedia)

Answer 2

No, Unfortunately.

https://bulbapedia.bulbagarden.net/wiki/Rocky_Helmet
https://www.serebii.net/itemdex/rockyhelmet.shtml