Lego 6276 - instruction of alt. model B building - YouTube
I started with some mint condition Pirates Eldorado instructions, and stumbled upon a well-priced goldmine! (More info in captions & comments) : r/lego
LEGO Pirates 6276 Eldorado Fortress With Box Good Condition | eBay
LEGO 6276 Eldorado Fortress Set Parts Inventory and Instructions - LEGO Reference Guide
Eldorado Fortress : Set 6276-1 | BrickLink
LEGO Pirates 6276 Eldorado Fortress With Box Good Condition | eBay