Hi, and nice looking plants. As
@Growtogrow correctly points out, transplanting your ladies should be physically doable, although a challenge. I think that stem and branch damage is a larger risk than root damage at this point - as Grow says, the root ball is probably pretty tight.
However, whether you
should transplant is trickier. If the plants are really root bound, they may not be able to respond all that well to the new pot environment. And if they don't, you may just lose some time on the auto clock for your trouble. At this stage in their development, a week or so setback for little end benefit could be serious.
If it was me, I would continue with the existing pots. Lots of people on here successfully finish healthy plants in solo cups, so other than plant size and the need for frequent watering, it can work fine.
If you want less hassle watering, and/or larger plants, go for larger pots next time. On the watering issue, you might have a look at autopots. The system can be adapted to whatever type of growing you might have in mind, and it can be set up with zero dependence on electricity.
Good luck with your decision, and let us know how you make out.