That's plenty of CYA.
Give the pool a good brushing to mix everything.
Start with about a pound - pound and a half of stabilizer, put it in an old sock or nylon and hang it in front of the return. Give the sack a squeeze now and again to help it dissolve. Wait till early next week (sock should be empty and K-2006 should be in your hands) and test CYA.
Keep chlorine around 5 in the meatime. Run your SWCG when it's ready but test every day and add bleach as necessary.
The amount of CYA you'll need depends mostly on how much sun your pool gets and how warm it is. This forum usually reccommends 40-50PPM CYA for manually dosed pools. Often, SWCG manufacturers recommend a CYA level (check your manual), it's usually best to run your CYA at the top of the manufaturer's range. Be sure to adjust your FC goal for your CYA level based on Ben's Best Guess Chart.
Let us know how it's going.