I have seen a number of install videos for the EPAS system - have a look at this one:
You’ll have to decide if there is even room under the dash for the EPAS system + the tilt-away steering components ( if that is your intent - to retain the tilt-away feature while adding EPAS ).
I’m in agreement with DieselD - retaining / saving the original tilt-away column would be advisable ( and using a ‘donor’ non-tilt column if you want to go the EPAS route ).
Here is a link to a member who has done this addition ( merging a 1967 and a 1968 to achieve this goal ):