and just for comparison, here's a coralife fixture that's 20", a 28watt PC
$35, but the bulb in it is for saltwater, so add another $14 for a 6700K.
I think the AHSupply kits are great, and you don't need to be very 'handy' to assemble it. But still I offered the above alternative 'just in case'.
Keep in mind that PC
bulbs are usable until they burn out...unlike normal fluorescents that lose too much spectrum after 9-12 months to remain usable.