Sub 5513 vs Explorer I 1016

I was offered a very nice Explorer I, ref 1016 s/n 2.3M. As in my collection I have four subs 5513 I am thinking to let go one of them, (a meters first s/n 1.4M) so I can swap it for the Explorer. Both watches are in very good conditions (case, dial, hands etc). Do you think it is a convenient deal? Are Explorer 1016 as much desirable as Subs 5513? Please, let me know your opinions. Thank you in advance