For the front, Zefel makes the low rider rack which comes with hardware for forks without mounts. Works very well with the rim brake mounts which I see you have.
The seat post mounted racks work well, but mount it high enough where it does not hit the tire when the rear suspension bottoms out and max weight is usually 10 kg. I do not use traditional panniers for the rear, just a duffel bag with a number of bungees holding it in place