I would start with MP base. BrambleBerry has a MP starter pack. You can also get your fragrances and colors there. www.brambleberry.com I would also get your business license, resale license (depending where you live) and liability insurance.
Congrats on your batch! I presume you ran your recipe through a lye calc? How much did you superfat? If you are just starting out, I would make that recipe smaller til you get the hang of it.