Its 32mm up from the door line mate. Got your pm.
Obviously clean it all up first. I used glue remover from the spray shop lads. I then put tape where I would be placing my steel ruler. This protects the paint and gives you the base line at the same time.
I put a meter rule on the side of the car with masking tape first. Start on the door as thats the main one to get right - the ends can follow.
Then it is a simple job to rest the rubber trim on this before pushing it home hard.
The ruler can be slid along the fixed door rubber strip and retaped to rest the front and rear parts on - then it all lines up perfectly
Hope this helps