I run 5x5 tents as well. If I dont run double lights then I use a light mover, light rail 3.5, comes with x2 3'3"(1 meter) bars that can be connected. I only use 1 of the bars and run a k1000 back and forth. Gives me 5x3 ft. flower easy.
Good luck
https://www.lightrail3.com/