Eheim 1262 for closed loop system with Ocean Clear

Hi

Did anybody try using Eheim 1262 in a closed loop system with Ocean Clear filters?

I realize that these Eheims can't handle too much back pressure but that's what I have right now and I want to convert from sump to inline system. The conversion itself will eliminate 4-5 ft of head but I just can't find anywhere how much back pressure OC filters create inline so I can't compare... There will also be two inline heaters (I guess that can be a concern too) and CO2+fertilization injector.

Will 1262 just choke with all this load or can it perhaps work?

Thanks!