Hi Hairy
Thanks for stopping by!! Im so sorry to hear about your brother man, I have 2 younger brothers and I just couldnt imagine losing them. Its damn decent of you to keep his hobby alive for him, you know he is smiling down on you for that!!
If you want to get the most out of your setup, here is what I recommend:
Grow out a bunch of seeds
Clone the best 3 females before floweinrg
Whichever female out of those 3 is the best (relatively short, good yield, good smoke) will be your new mom
Take clones from the new mom asap, then grow as many as you can fit at once in your cab
This way all the plants will be the same, grow the same, require the same nutrients, etc. Makes things SOOOO much easier! Try for one that stays around 15'18" tall, because if all you have is 3' of height, you will only be left with about 15'20" to grow in with the reservoir and bulb in there.
Best of luck!!
KB