Deepsea for Daytona?

[Canook]

OK again looking for advice... i love my deepsea but i never wear it between my sub and my newly acquired Panerai they take up all my wrist time .

I really hate having watches sit there so id rather change it for something ill make time to wear.(besides if i get a DSSD again it'll be a deep blue)

Now ive been offered a 116520 Daytona as a trade (SS black dial or a SS white dial)
now my dilemma.. both are older models (thin hands) with no paperwork, they are 100% genuine but is it worth a trade?
I dont really have a dressy watch and i think the daytona will fill that gap....

its really hard to date them without paperwork but he said one is a Y series and the other is a Z.....

my "Rolex passion" is telling me yes but my "common sense" is telling me no

Advice? Opinions?