So your style is 'soil or soilless'.
Don't worry abotu the res then.
Read the whole 1st link in my sig, the continuous canopy sticky, and also read some grow logs- youwill learn a lot.

That is an excellent choice for grow medium. Just get a quart of grow and a quart of bloom. Are you running the pureblend line, or power plant/power flower, or the granular TriFlex? Also check that you are getting the soil formulation and not hydro. A quart of each should get you at LEAST through this crop, if it is fairly small.