Pirate Borg Bundle from Bundle of Holding is $25 incrementing price. Pirate Borg is a variant of Mork Borg and popular enough to have multiple supplements, some from third parties.

Pirate Borg RPG ($20, OWN) - 166 page digest-sized rules

Pirate org Starter Set ($20) - Player's Guidebook, 60 pages. Trapped in the Tropics, adventure.
Cabin Fever (free) - 172-page supplement from various authors
Dark Caribbean Port Generator - random tables
Pirate Borg Printable GM Screen
Terror in Tortuga - adventure

Buried in the Bahamas ($8) - 24-page adventure
The Battle of Dead Man's Cove (2pp, retail price $3)- small adventure
Cavern of Cursed Tears (6pp, retail $8)- small adventure
The Sinking of C'Thagn (2pp, retail $5)- small adventure

Faction Relics (16pp, retail price $3)
The Repentant (12pp, retail $3) - one shot scenario
Tangled in Shrouds (27pp, retail $8) - adventure

Blood in the Water (2pp, retail price $4) - small adventure
Raise the Black (2pp, retail $4) - optional rules
Sweet Tusk (6pp, retail $7) - location

Since I already have the core rules the remaining is $60 for a $25 price so not too bad. Not sure if I'll buy this as it's not one of my favorite genres.