Hey Snitch,
I deeply understand your situation,
you are looking for that kind of kick, and let me tell you that I’m afraid that no other kick will sound like the jomox stuff.
Don’t get me wrong, I love all what I see around the Rytm and I’m waiting mine, but some kind of sounds are kind of… “more vintage”
I guess that you can almost get that sound in the Rytm with the new FM addition to the new OS but If you don’t know how to do it, you always can learn Frequency Modulation, if that is not an option, the good thing is that you can layer those Jomox sounds with the Rytm ones… 
I don’t know if they will integrate very well, but at least, that is the setup that I chose. I think you can’t go wrong that way.
regards!