Testing the estimated query plan of a portion of a trigger that uses inserted/deleted

I'm performance tuning a SQL Server trigger that has several statements using the "inserted" and "deleted" tables. How can I break out those individual queries from the trigger for testing in order to see their estimated execution plans? The "inserted" and "deleted" tables have no context outside of a trigger. I want to make sure that it mimics the behavior of the trigger as closely as possible. The trigger I'm testing is INSTEAD OF DELETE. I was hoping not to actually delete the record so that I could easily test the before and after without deleting the row.