Massive sub pumps or cut into return line for skimmer?

[Hustler]

there are no elbows on the system other that what is supplied on the twisted attachments, the elbows are all on the drain side. Ill see if i can post a video of the flow perhaps to try and better explain... its not the baffles that will slow it down in this case its the 9000+GPH trying to run through them lol its just too much in my sump....
guys in the states are running this skimmer with dual mag 18s no problem and the guy who built it for me said on friday it could run on a number of diffrent pumps this one was way overkill and i thought i could make it work... i was wrong...
Im trying to come up with a diffrent solution now as the inline pumps are not an option unless i buy a 230 gallon for a sump...
my sump width is 16 3/4 inches