Can I get away with an internal pump?

[GQsmooth]

Looking at pump options for my 220G, with 1.5" outlet return into 3/4" locline (2 exits). The overflow can handle around 2500GPH, and the head is around 12ft vertical. I will be using spa flex to avoid extra head loss, in which I think I will be able to get to the tank basically with 1 straight line except for splitting the lines into 2.

I was looking at the Jebao 15000, but I'm thinking it won't have enough juice to get to the tank with the GPH I need. I'm trying to avoid going external if possible.

What you guys think? And what's the ideal GPH for the pump at the tank? 5-10x? I will also be running Ecotech MP40's to help with flow.