I have given this response MANY times - C-41 chems:
I used Champion photochemistry, i get it at Unique photo in NJ (though there are several places around the US who stock the stuff).
Easy to read PDF instruction online for free, the chemicals are the cheapest out there, and are easily adaptable to any process.
Simple 1,2,3 stages\steps single solution mixing (for extremely long shelve life).

Downside - you have to buy a fairly large amount as the minimum sizes are fairly big. They are so cheap it evens out after the first 50 rolls, then all processing is free..