Unfortunately, you'll find that most Chinese-language primary sources do not exist in translation, especially when it comes to pre-1800 topics where academic interest is relatively recent and postdates the China-centric turn (and hence has a general aversion to working based on translations). Most English-language Chinese history is academic, and as such there is a general expectation that people reading the sources are doing so for academic reasons and can thus be expected to do so in Classical Chinese. There is the odd set of translated sources here and there – the Michael-Zhang series The Taiping Rebellion is one such example – and a few longer narrative texts, even then often in excerpted form (e.g. Sima Qian), but on the whole, unless you can read Classical Chinese (and/or Mongolian and Manchu where appropriate) you'll be pretty much stumped when it comes to primary sources. There are a few readers here and there that you might be able to use to pick up the script and language, as long as you are able to devote the time to doing so. I'm planning to start on Paul Rouzer's once I've got Manchu out the way, but Mark Edward Lewis has a reasonably complete free course in literary Chinese online if you'd prefer a web resource.