organising a grow 250hps 80x80

Hello all,
at the moment i have an royal blewmatic and a royal critical auitomatic growing in a 80x80x160 space .
Im at week 5 now and considering how i schould best organise my grow. I dont have an different place for seedlings.
There s the condition off lights
do i perchase a differt bold for seedlings and grow ass manny plants ass i can simultanios
the advatgage with this is that i can grow feminised seeds with i still have a couple of seeds left from my prev summer grow.
or do i plant autoflowers and refill my closset from time to time and keep new seedlings growing with my other plants. In this case autoflowerts would be best i quess because off the 18/6 lighscedule i can maintain.
There s the question off sice pot.
i can fit 8 26X26 pots + ventimator in there or 3 30X30. I dont know if the 26X26 size is big enough
I m thinking about waoying till harvest and start over with the topp 44 seeds with a special bolb for seedlings in 26X26 pots but i hate to waste somutch time i also dont want to waste the top44 seeds.
Could i plant them under my flowering bold and let them grow with the autoflowers, i quess plant them when i m at week 6.

Would love to hear some toughts on this.
Thx in advance

Choose the strains you like best, take clones and make yourself a little nursery with a T5. This would save you the most time, take them while you veg 18-6 for a short time.

What I am trying to say is give up on the auto-flower.

i probabbly will start cloning for next grow, but for now i guess i will grow my seedlings under the flowering lamp. I have to save some money at the moment.
How big should i build my seedling space when i decide to do that ?