You appear to be doing well on the rat front! Now all you need is a really good female that'll give you 15 pups or more. ;) One of my brand new breeders, had her first litter about 5-6 days ago, and gave me 15...I was so pleased with her!! I was really used to getting 10-13, so I had to re-count a few more times to make sure I wasn't hallucinating. :)
It's a bit amusing, how obsessed with hygiene rats are. Amusing because people think of them as filthy, nasty creatures, when really, they bathe more than we do! Of course, they could just be considered covered in rat spit, rather than clean...but, I personally find them to be very clean little fellows.