Spend the money to build a safe, sufficient grow. It will pay for itself in no time. You will have far healthier plants if you just listen to proven growers with proven plants. Its not that hard to go from growing $40 "tomatoes" compared to $600 "orchids." Took me a year, but it costs money. Have a serious thought out plan. Do some research. Ask some questions before you start. Im tired of seeing ugly plants and hobby gardners who all know best. There is a reason you dont make your living this way. Knowledge. Take it,, use it and be successful. Dont be a tool and ruin it for everyone else.