Take your time.
Make sure all the bits are there (the pictures of your chosen instrument on the PBG website will help)
Ask questions.
Try and put the bits together without screws or glue.
Start a build diary and ask even more questions - there's no such thing as a stupid question from a raw beginner.
Have fun, take your time.
You've started facing in the right direction with doing the finish on the body & neck, but do not expect that this won't need looking at again as work on other things progresses.

Do you know how to solder? Does the kick need anything soldered?

Well now you've opened the door to building kit guitars don't be too surprised if the door won't shut.