HOLY COW!!!! I'm doing this exact setup on my experimental grow...!!!
...on the T8 use 6500K and 3000K (go for the 2600k if possible)...
so depending on your strain and wants, add 6500 to make it more stretchy, or add 2600k to make it more dense
...Lowes 8.98, Target 11.95, Wal-Mart 9.98...