Sump and overflow for 29 gallon tank?

[AwesomeDavid]

Hello all, :wave:
I am in the planning stage of a 29 gallon tank with sump that I will start in 2-3 years (takes a while to save up when you are 13 :spin1: ). What would you recommend for an overflow? Also, what do you think would work better as a sump, a 20 long or a 20 tall?
so far I have found this https://www.saltwateraquarium.com/eclipse-s-overflow-box-eshopps/
Thanks!

 

[mcgyvr]

I'd run this one as the 3 holes allow you to do a bean animal drain system..
https://www.saltwateraquarium.com/eclipse-l-overflow-box-eshopps/

And a 20L makes a better sump for sure due to its length.. You can get 3 chambers if you want in it..

 

[AwesomeDavid]

Alright, since it is only $10 more that is probably a good idea. It will definitely be easier to install the drain. This is my idea for a sump.

 

[AwesomeDavid]

Does anyone have any imput on my sump design? It is approximate and just concept right now.