I currently have a EERO router.

I want to replace it with a TP Link AC 1750  

Archer C7 router.

I have a lot of devices attached to my network, including two TP Link antennas and a TP Link AC 1750 router in a building that's about a quarter of a mile away from my main TP Link router. 
 

my question is how much reconfiguring do I have to do with all of the devices on my network if I was too replace the EERO router with the TP Link router.

I know when I set my system up it took quite a bit of work to get everything working properly and I do not want to go through all that again, but I would like to get rid of the EERO router. 
 

Any help would be appreciated on this question.