HI there! I see your recipe has both babassu and coconut. Did you know that those two oils behave almost identically in soap? Rather than spending their hard-earned $$ on expensive babassu oil, most soapers use just CO instead, to save money.
Also, "avocado butter" is typically a pricey combination of avocado oil and hydrogenated vegetable oil(s). Instead, have you considered using shea butter or cocoa butter, or both? Those will bring some hardness, longevity, and conditioning to your recipe, while still keeping it vegan. If you are worried about the shea or cocoa butter dampening your bubbles, I wouldn't worry about that as long as you keep each at 10% or so.
As written, your recipe will create a super bubbly soap for sure, even without adding sugar. However, it will also be extremely "cleansing"- which refers to how much oil it will strip off your skin. By all means give it a try if you'd like, but don't be surprised if your skin is dry and itchy after using it. It would be wise to consider lowering the total of CO + BO (or just CO if you go that route). Instead, rely on sugar to create more bubbles as you indicated. The better bubbliness from sugar won't show up at all in the
soap calculator, but it really does work! You simply dissolve the sugar in your batch water, before adding the NaOH to it.
Whatever you decide to do, good luck, and be sure to report back with pics and a description of how it worked out for you!