the manual is handy for how to get the assemblies out of the door, once you've got them on the bench and the replacement seals at hand from one of the vendors, it'll be fairly straight forward - the pics about half way into my 'details' album linked below might help a bit .... with the vent seals you also need the rivets and rivet tool - all the window seal pieces are available, like from
Jim Carters, or
American Classic .... and you don't need to print a bunch of that manual,
Keiths site is the info gold mine for we bolters, it'll be there a long time

Bill