Besides the fresh bit, cedar is about the worst for organic grows because of the oils it contains. It does repel insects (think Cedar chest, cedar lined closets, etc), but it also does a number on bacteria and fungus. Both good and bad.
In my recipe, which makes ~18 gallons, I use a light 3 gallons of mulch. But, if you found cedar, pine or fir should be around. Cedar is usually the hardest to find and the most expensive. I use the pine bark as aeration at first and it becomes a humus source as it breaks down.
Great if you can find it, but not a deal breaker if you can't. I'm sure a *work around* can be found, let me think on it some. It's certainly not a "must have".
You have the "must haves", Neem, alfalfa and EWC (I use a 'heavy' 2 gallons in my recipe). BTW, I use 5 gallon buckets to do the initial, rough, amounts and a 2 1/2 cup scoop for the amendments. Make a couple of batches and it becomes handfuls and eyeballing for measuring (especially with re-amends).
Almost there!! Wish I knew just what is available to you to sub for the pine bark mulch. But still, no worries.
Wet