ill be honest, the turbo is just one of about 20+ parts you need to have have to get it working correctly. i could hand a lot of guys the perfect turbo but that doesnt mean they can get the rest of the parts on it put together right and even get it to run.
Im not saying dont try to build stuff, im saying, when i was asking the same questions, i had no freakin clue what i was talking about or doing.
as for the turbo, THERE should be a tag riveted to the centered section, grab the model number and we can look it up.