Finally installed the crank seal today. After a thorough cleanup i lubricated the new seal and then drove it in with a special tool on loan from Mark. Once the tool had done its work, i used a large socket to drive it in until flush.
Now onto the good stuff - re-installation of the crank bolt! My dad and i whipped up a wooden wedge to make this task a tad easier, see pic attached:

With the wooden tools in place we found it very easy to torque up the crank bolt, far easier than i first though as i was expecting it to be a royal pain in the rectum.
Next step was the timing belt and as most of you may know this isn't my party trick

Anyhow, as i am well versed in timing belt installation i managed to install and time up the belt in good time. however i do have one burning question:
As i am installing a used belt, can anyone advise on which marking i should use on the tension pulley? I have already lined it up with the marking which i made proir to removal, so the belt is tensioned up exactly as it was before. Woould this be a good move?

Please let me know your thoughts.
Regards