I need an acrylic stand to start at 10" for an 8" cake and then fit 300 cupcakes. I've looked everywhere but nothing will hold that many. Any suggestions?

You could have a custom acrylic stand made but that would be costly...You could set the rest of the cupcakes out on a table surrounding the stand that holds less.

Use "fairy cake stand" as your search term and you will get a lot. They have them the go really big (you buy the additional plates separately) at www.s u garcraft.com.

all kinds of acrylic stands that you can use for cakes or cupcakes on ebay and some of them are super expensive but most are very reasonable.

might check there.