Welcome! I am a newbie grower as well with a few grows under my belt. I am going to give this a shot without looking at the other replies, so I apologize if I repeat something (maybe good if I do LOL)
Do NOT buy a package deal! Do the work. Buy each product that matters individually (lights, tent/grow-space stuff, ventilation, humidity control, water testing, etc.).
Unless you plan to grow one harvest and be done with it, invest wisely starting with lighting. In the market right now, the quantum boards seem to provide the best bang for the buck, and they will last a decade and leave you time and $$$ to spend on other things. If you are open to any lighting options, @dbrn32 can guide you towards the best investment for your space without being a “well, I bought this, and you should too!” guy. Very knowledgeable and actually enjoys the intricacies of that BS
Plenty of tents out there, or you could use a refrigerator box with Mylar space blankets and duct tape - the least of your worries, so buy according to the space you have available, and fill it as cheaply as possible.
Ventilation is secondary to lighting, and must compensate for the heat produced by the awesome lighting you were ably to buy by buying separately
Water-testing is an often overlooked expense. Get quality from a reputable company, even if you buy it on Amazon. I use Apera, but there are others. Something easy to calibrate and trustworthy. I like Apera because I can nute-up my water, then dangle it in there and watch the results as I pH up or down.
I am presently using all Ocean Forest products, from soil-to-nutes, so I might be able to answer specific questions about that. They have a helpful customer service dept., and I am not shy about asking them to do their job