Ah I'm just a fellow modder.I like your project and it would be a real shame to have it die because of a part I got for free and is just collecting dust.
You'll want to cut off the reducer bushing that it has off when you get it.You want the full 1/2 inch lines.
Also , a piece of advice.
You'll notice it has a factory installed double-sided-sticky-foam thing on it's base.I'd remove this , and bolt it onto a piece of metal (Think heatsink.).Also , provide a fan for the pump.You are asking it to do a lot , and it gets hot too .