challenge finding a pump- advice please

[shootingstar]

Hi all,
Well I've been searching for a pump for the upgrade.
We were shooting for 1200 gph at 6 foot head.
Seems all the internals are too small and the smallest externals are too big.

any suggestions/recommendations out there?

for the internals it appears the only ones that might work albeit at their max would be the Mag 18, Sedra KSP-1200, or quiet one 6000..... problem is can't say I've found good (overall) reveiws on any of the above 3. None of the Eheim's are big enough.

For external
the reflo's are too big,
the bluelines & iwaki are either too big/small

this is really frustrating, I had an amazing plan and even picked up a wahoo to power it all but things had to change and now that pump is going to be way too big. We seem to have stuck ourselves right smack dab in between the two extremes where the submersables are too small and the externals are too big.....GRRRRR!

thoughts/suggestions seriously appreciated

Cathy