I'd recommend you cut the batch size to 16 oz or 500 g of fats total. You're proposing to make a large batch using a recipe you don't even know you'll like as your first time. Better to make 2 smaller batches so you can practice your soap making skills more. And also consider making 2 different recipes so you can compare and learn what you like. And if you make a bad mistake or hate the soap, a small batch is less heartbreaking to discard than a larger one.
Don't use "water as % of oils" to determine the water content for the recipe. Better to use either lye concentration or water:lye ratio for better consistency and control. I'd start with 33% lye concentration (2:1 water:lye ratio) for this recipe and tweak the water content from there.
You're using a whopping 6 fats. Unless you have a specific reason why this needs to be done, consider a simpler recipe. Maybe stick with a blend coconut, palm, and olive with possibly 5% castor if you feel strongly about castor.
Although soap making often starts with fats, it's important to remember soap is based on fatty acids, not fats. The fats you start will are going to be dismantled almost entirely by the saponification reaction, so fancy or expensive fats aren't any more magical in soap than more common, less costly fats.