Welcome and thanks for adopting two kitties. Two are always better than one.
This is the best site we can give you.
www.catinfo.org
And it has a section on making cat food which is easy to do.
http://www.catinfo.org/#Home-Prepared_Diets
Wellness kitten is a great food as well. If they don't take to the raw right away you can still supplement with it.
Good luck. And ummm, we like pics here.