Number of plants given this..

I would like suggestions on the number of plants I should run in a 76" x 76" tent with 2 600w HPS lights. I would like to only veg for a few weeks (4 weeks maximum) and then go into flower.
They will be in dirt (FF Ocean forest, perilite, FF light warrior mix using BC/Technaflora nutes). I have 3 and 5 gallon bags I can use for their containers.

I really just don't know how many to go with given this is my first grow in an area this large with a couple 600's.

Photo is my space.

Thanks.

i would throgh 'bout 40 in there and do some trimming and lst maybe just lollypop'em

LST may prove difficult in growbags. I probably will do some LST but to a considerably limited extent because of this. I also hate the idea of lollypopping.. trimming some of the lower bud sites, possibly, but not the fan leaves where they originate from. Thank you for the response though.

you can do 25 and let them get decent size

On another note I came across some bulk auto-fem seeds today and it seems like that may be a possibility given the short veg time I had planned on to begin with. I figure 40 of those will give each about 1 sq ft with decent room between the 8x7" 3gal grow bags. Seems like that would be a reasonable harvest size for the time it would take to complete.