The extract recipe posted by homebrewer 99 is NOTHING like Blue Moon. There is no wheat, no oats, too many additions of hops, the spice additions are too large, there is no honey used in Blue Moon and it is the wrong yeast.
I am sure it will make a nice spiced ale, but it is not Blue Moon.
I have not used extracts in over 20 years. I don't even know what is available these days. Let me see if BeerSmith can offer any suggestions.
Dried peel is completely different than fresh zest. You only need very small amounts. Please don't try to compare apples to oranges.
[rant on]
I have given you the EXACT ingredients and proportions that were used. You can use anything you want, but if you want the same flavor as the original, use the information given in this thread to make it "stock" once. After you have made it "stock" then you can mod it to suit your tastes. I do kinda know what I am doing. If you don't actually brew it according to the original recipe, you won't know how it is supposed to taste.
[rant off]