Here is a build for the Kospet Hope.
(Please note that i don’t own this device, some drivers like the display are untested).
Edit:
I updated the kernel images on the first post and added support for the Rollme S08.
I also found that the HRS3300 heartrate sensor in the Rollme supports blood pressure.
However this is currently not supported on the Android interface and can only be accessed via ADB:
echo 1 > /sys/devices/virtual/sensor/m_hrs_misc/blood_pressure
cat /sys/devices/virtual/sensor/m_hrs_misc/blood_pressure
Maybe someone has an idea how this can be made accessible to a (customized) Android app.