What woud you

do if you have a extra room that measure 8x9? looking to set up a small veg with a mid sized flower with a little storage left over. how would you go about it.

I'd actually build a room inside a room so I would just build a flower and veg room within that room with 2x2s and panda film, but most would just split the room. To do this all you need to do is build a 8 foot frame however high your ceiling is with 2x2s or 1x3s. Either put some money into it and nail up some plywood to the frame or just staple panda and/or poly to split room for darkness in flower. Create a door to flower room with stick zippers or velcro, or if putting up plywood just make a door from the plywood and add a few hinges. Key it to have total darkness of which I'm sure you already know.
Use the remaining half of room to create another split(another frame) for your veg room, and then you have the room closest to the entering door for the needed extra space.
It would be so much easier to draw it out then explain it.

i made the same thing with pvc pipe

Here is a pic of my dry room. I do the same thing to build my veg and flower rooms, only bigger. I just don't have pics of my rooms as they are in bedrooms that are very dark.