Are the plants going to be potted? If so, very easy to check the pH of the run off. Your water will have a huge impact on the pH. What works for one person may not work for you. Fox Farm is very popular. Don't pack (compress) the soil. With time all that airy space will be taken up by roots. If doing it outdoors, keep track of the season and lighting. Be prepared to contend with bugs.

Get a few books, Jorge Cervantes is popular... money spent on books will save you $$$ later. Above all learn your local laws and be prepared for cops and criminals. Soil is more forgiving than other methods, but it will take a fair amount of your time.