I managed to fit a 13" slim spal puller (just) on the drivers side of my china spec radiator. The bloke at PWR said that probably wouldn't cut it by it self but there was zero chance in fitting anything else next to it.
I'll be surprised if a 14" puller will clear the engine, I have a 14" spal here and it doesn't fit the dimensions of my core height wise.... 378mm between the tanks, but you have a different radiator. the 14" spal is like 399mm by 410mm.
I could only fit a 8" spal on the passenger side as a pusher because of my oil coolers infront of the radiator but you could probably fit a 10" spal? as a pusher without anything in front. Whats aircon?
My memory is a abit hazy but the 13" and 8" gave something close to the same amount of flow as the 14" which what the bloke at PWR was wanting me to run, can't remember is that was the slim version or not.