Thanks @Prom I really appreciate all the help... im most definitely going to be needing it being my first time growing. 
 
	I will post pics of the greenhouse and the grow once I have everything in order and ready to run. 
 
	I will definitely drop the seeds into a glass of water and then go for option-A, where I drop them straight into their pots and then just move them into bigger pots as they grow out of them.
 
	I was thinking of dropping an Amnesia Haze in the 90L pot, and I have some cages here already that I can use for support. 
 
	I'm using the entire Bio Bizz range: Root Juice, Bio Grow, Fish Mix, Bio Bloom, Top Max, Bio Heaven and Activera.
 
	Plus I have KELPAK, CALMAG and Epsom salts...
 
	I think i should be good with the above... But obviously then no need for the epsom salts as much I suppose.
 
	In regards to water, would your preference be with rain water, or rather with dechlorinated tap water? As those are currently my 2 options... current PH of 7.4 for the rain water, and 7.8 on the tap.
 
	And would you need to alter the water PH at all? If so, could you use a regular PH down or up? Or, would the growing medium buffer the PH on its own? 
 
	If you have any advice on training methods... LST, super-cropping, etc. Please feel free to pass on any knowledge you feel you would like to share... im open to all the advice I can get