Looking good. I have never worked with clones but I wait till she is on her 6th node before topping at the 3rd. Are you planning on a mainline or flux?
Those 2 fans were both intakes, there was a bigger fan on top to exhaust. My problem was i had way too much foliage and no fan inside moving air over the leaves.
A tote does not offer much space. I managed to grow 1 auto in a double stack tote but lost all my main colas to bud rot.
A very rewarding experience nonetheless...
That's my issue with rockwool, the ph is just wrong. I soak my jiffy pellets in distilled water for a few minutes, give them a light squeeze and they good to go.