just an FYI, there is a slight adjustment to the tax cap that needs to be made. Since uluna is not a registered denom that is usually taxed, it will follow SDR’s tax cap (as per the code),
// if no tax-cap registered, return SDR tax-cap
return k.TaxPolicy(ctx).Cap.Amount
Thus, the cap amount should be set to 60,000,000,000.000000 e.g. 60billion luna. This would cover the entire 6.9 Trillion supply.