Moving your plants in the container from here to hell will not stress them out unless they have something to hide... do not mess with the light cycle and you will be fine... but it will become a pain in the ass and you will need to watch the time... and if you have to choose to give a flowering plant more light then dark... go with the dark and then get the time down to the 12/12.... as for choppin in the 7th week.. well that is up to you... most strains are not close until the 8th week or more...
Build you a place to veg your plants and then move them or do what you are doing now and work your ass off..
Good luck!