Can't change the title, so this is really about EZE and AEP.

I ended up with a 8 hour layover in BA tomorrow, USH EZE/AEP ASU, so domestic to international (arrive EZE at 4, depart AEP
at 0000). My ticket is AR and while it is premium economy, apparently AR handles this as J as I had access to the SkyTeam lounge in SCL.

I'm assuming no arrival lounge at EZE. I don't see a ST lounge at AEP. I have PP, but I'm guessing, based on past experience, that PP will enforce the 3 hours even though it is a connection.

EZE has luggage storage where AEP does not. What are the logistics of dropping bags at EZE, going into BA for a bit, returning to EZE for my luggage and then heading to AEP?

I also checked day use rooms in the vicinity. The only one that I could find was the BA DoubleTree which seems to be a bit of a distance from either airport. (And day use still may have an early checkout - 6 PM or so)

Any other suggestions?

TIA