Hey Don, just let the photos coming, rest assured our server can handle it 
I was once too big fond of CFL for experiments see my thread…
What is the wattage output of the LED? Is that some branded LEDs? 
Its nice to have whole line of Botanicare ready for action nice bottles for “sampling” (truly generous company) 
From UK fertilizer brands I really like Hydrogarden Vitalink line, specially their organic line, but they have changed it few years ago and are not producing it anymore. 
When using 5 gallon pots (really huge), you must be repotting few times to get the plant really use whole medium. You probably know already that roots tend to grow downwards and to the sides keeping the middle of the pot without use, so it is recommended to repot to bigger sizes gradually.
I’d vote also for Bat Guano, it’s incredible source of PK. Here in EU it is regularly supplied and also available in liquid form (under brand Guanokalong).
Good luck and I’m looking for more pics…!
Green regards!