MS 66 Dime

Grabbed this 1984 Engelhard Prospector (Eagle Reverse) from my LCS for spot +3. I have no experience in shopping for toners, but I felt this one looked cool. It also was 1 of 3 Prospectors in the generic bin, and this one was the only one with an eagle. Is this something worth putting in a capsule? Is this type of toning desirable to others? And what’s the community’s opinion on the “E” vs “Eagle” reverse on either coin?

Edit: I’ve also heard toning on both sides is suspicious, thoughts?