First time grow need help please

[Cmg813]

Hey stoners I'm a first time grower and I wonted to build a pc grow case. I have took everything out(still have the parts encase I need them) and cleaned my pc.
https://www.dropbox.com/s/0yjzhiishak93m1/Photo%20Apr%2018%2C%2010%2033%2015%20AM.jpg

https://www.dropbox.com/s/q95h9yb4n0nfvrw/Photo%20Apr%2018%2C%2010%2047%2024%20AM.jpg

Now I need help on which fans to put where. I have three fans, one is a 70mm with 37.54cfm and the other two are 80mm fans, one is 35.91cfm and others is 33.53. I have no ideal which one to make my intake or exhaust fan and where can I put the other.
https://www.dropbox.com/s/kfoyeq9kbud3zaj/Photo%20Apr%2024%2C%208%2051%2048%20AM.jpg


Also can I put light traps in there or would that take up to much room?

Case
https://www.dropbox.com/s/atma8d1npdw9d0y/Photo%20Apr%2024%2C%208%2048%2008%20AM.jpg


Front of case
https://www.dropbox.com/s/zitk5pttet2czed/Photo%20Apr%2024%2C%208%2047%2050%20AM.jpg


Back of case
https://www.dropbox.com/s/ssrhvbovcmz1rpc/Photo%20Apr%2027%2C%209%2045%2056%20AM.jpg

https://www.dropbox.com/s/w1nbsyttb1aj7m0/Photo%20Apr%2024%2C%208%2047%2013%20AM.jpg