Well I am taking off work this Friday to go to another town to get my 2 tanks filled with Co2. Then I will put a fully grown pepper plant in there to see if it survives first. Lol.
I am no expert by any stretch of the imagination but with those 3 lights, I am pretty sure MJ will have no issues growing in your grow room. Though I like that your not in a rush to get started and making sure you have all your ducks in a row 1st.