Your lights are fine for a plant that size. Assuming they are 42w's. I am assuming they are, a 42w equiv would be a tiny ass light, lol.
As for the soil...
Stop growing in mud. That soil is compressing itself into a brick that your plant will have problems getting root development in.
It doesn't matter what you get. Even some crappy Miracle Grow soil would be better than what it is in right now. Just look for a soil that does NOT have any time-release nutrients in it.
I recommend Happy Frog, but it sounds like from your post that a hydro shop is not within your vicinity.
Get any non-time-release potting soil and some perlite and mix up your own if you have to.
As for transplanting... you are just going to have to be careful. Take the whole brick out of the pot you are using to grow in and start cutting off dirt until you start seeing roots.
Try to get off as much soil as possible from around the main root mass. Have your new soil ready, and after you have your root mass out and ready, gently squeeze the root ball a little to loosen up the mud brick, and shove the whole root ball back into your new soil.
Gently cover it with the new soil, lightly pack it down, and lightly water it.
Give it about a week and watch it take off.