What would be the best method with this tiny closet?

Hey folks - first off thanks for clicking and thanks for helping out!

I’m a noob but I have a little previous experience. My goal is to have a stealthy personal grow - I rent my apartment so stealthy is crucial!

I own this closet from ikea It is small. I don't wanna buy a bigger one cuz of $$$.

The closet is 68”L, 55”W and 19”D. The smaller compartment is 19x22 and the larger one is 19x31.

What growing approach would you recommend? SOG? SCROG? Just LST? How should I split up the space in the closet, vertically or horizontally? What type of light would you recommend?

I also own a bunch of quality CFL’s from my last grow, about 6 small pc fans and 2 high end noctua pc fans that are supposedly good at pushing air through homemade carbon filters. I also got some nutes but they are a year old (stored in a cool dark place).

I plan to buy a 400W HID light that is dimmable to 50%. I would consider buying a hyper fan and phresh filter if you think they are quality products.

Any ideas on what approach I should take with this grow is greatly appreciated! I don't know where to begin!