It looks like you can markup your actual costs using the plus version:

https://quickbooks.intuit.com/learn-support/en-us/help-article/manage-customers/enter-billable-expen...

I used to base my income on estimated costs like you're trying to do, and I can almost guarantee that you will make more money if you base your income on marking up the actual cost.  Think about using cost-plus accounting instead of "I hope I make money on this" accounting.