Building a GPU Miner

Hi, I read a DIY on building a GPU miner. They listed a BOM for everything I will need and looked up their prices on Amazon. All comes out to less than 300 dollars without out the GPU of coarse. Is this worth it? How much should I spend on the GPU card? Prices are all over the place. I do want it to be profitable enough to at least recover my costs. Is this worth it?

BOM

Go to whattomine.com then click the GPU tab. Should get you to a decent start for ideas (and if you can get your hands on them).