Which skimmer for my next tank?

[M3P]

Looking at internal skimmers for my next tank and not really sure. I've only ever used an external super reef octopus (loved it), but the new one will need to be underneath the stand so height, footprint, and noise will play a role.

looking at doing the super reef octopus 3000 internal vs regal 170 (either regular or super space saver) vs deltec sc1455 vs other recommendations? Trying not to blow my new tank budget so no crazy recommendations.

any recommendations on DC vs regular pump?

 

[Aqua Man 07]

What hight will you have to play with. I still have my skimmer and I miss labeled it it's a dcs 250 it's like 27.5 tall with the neck cleaner.