Yes that sounds good. Did u take the device to the panel location and check the signal ? You will also need to recalibrate the shock sensor if you can get it learned back on. Arrow on inertia barrel should be pointing upwards and 1 click negative before u do this.
It looks like it could be a shock/magnetic contact combined sensor, on whoch case the red would indicate the shock sensor. This doesn't help with the tamper fault though. Can u post a picture of the pcb?
The red light signifys that the reed switch is open. If u put it next to the magnet it should go green. Can the fault on the keypad be reset when both tamper switches pressed?
2k2 is fine, tamper should clear when there is no movement in the room. 8k8 is too high should be 6k9 OC. Could try taking the jumpers off and fitting 2k2/4k7 resistors in the terminals