It doesn't need K1R at all, I have no idea where you read that. It's even stated incompatible with K1R as it is meant to replace it. It has been made to be compatible with K1CP and RC-K1CP, although it does not need any of them to work properly. Furthermore, if you read my description, I fixed, improved and added a lot of stuff in order to make it more fun. There really is quite a big gap between K1R's version and mine.
Also, for your information, K1CP is the most go-to mod for KOTOR 1 nowadays. We purposefully made the newest version of Sleheyron compatible with it.