Space issues

So I got 4 girls given to me that 1 goji og and 3 14ers (dont know much about 14ers) and they were roughly 3.5 ft tall to put in a 5x5x6.5 tent. I trellis them down to just 2.5 and let them go for 2 weeks trellis again and flipped them to 12/12 from well after a week the 14ers stretched ridiculously and have not stop and am now in week 4 of flower i habe abother tent I can use that is same size but I was wondering if I cut the trellis to move them will it harm them in any way, like shock or stress . Really need opinions because Il running out of space and some lower branches aren't getting light. Should I just remove them or is it to late.