Don't hesitate. Get the swager. You do not need to readjust the swager once set. All primers will be the same depth. The Dillon one requires no adjustment that I am aware of, but I use the RCBS. 5k is just too many to not use a swager.
Most 5.56 primer pockets will not need a decrimp, set the decap to just barely push the primer out, and the ones that need a decrimp (swage/ream) will stay in. SAVE A TON OF TIME. Only like 1 in 20 or 1 in 30 have a crimp that actually does anything. And sorting will not find which ones.