So you are looking for a bit over 7 oz's a month. You would want 1 flowering room. 1 veg room amd possibly a cloning or mom cab. Kinda depends on how big your spare room is.
You would want to go perpetual so you have meds comming off every 4 weeks or so. First plants go into flower, 12/12 while others are vegging up to size in the other room 18/4 or 24/0. You could keep moms and clones in the veg room/tent/cab if you go 24/0 lighting.
The idea is to have some flowering for about a month then put more in to flower. Then keep that up every month and you will have plants ready about every 4 weeks.
Depending on the strain and again size of rooms and the plants, 7 to 8 ounces every 4 weeks is easy as pie.
You should be able to get 2 oz per plant if you veg them a bit. For low plant numbers...veg longer. Bigger plant = more yield. This run I went with 1 huge plant about 4.5 feet wide. Just vegged for longer and my yield should be close to 10 oz's. I am doing a perpetual as well. Here is my current grow diary if you want to look. I am doing it with 1 4.5' by 5.5' room and a decent sized cab.
https://www.icmag.com/ic/showthread.php?t=235661
Is 600w hps enough for 200g a month or should I buy another one.
Thank you very much for your answer.. I have already homebox s which i'm thinking of using as a mom/clone/veg room. Do you think that would be enough for that? And what kind of tent would you recommend for flowering. Is 600w hps enough for 200g a month or should I buy another one. I'm definitly gonna check your grow diary when i get to home from work