Take your plans to Kinkko (spelling?) and have two copies made, they may be reluctant if copy righted but usually do it if you tell them what you want the copies for.

Use one of the copies to build from and the other to make templates of parts either of the above posts will work for getting the pattern to your wood, I use a product called SeeTemp, it is a frosted plastic that you can see through and just place over the plan and scribe with an Exacto then bend the SeeTemp and the template falls out. I buy several sheets of it when attending the Toledo show but think it can be ordered direct ( don't have an address).

Save the original plan (I tape or pin it to the wall behind the work bench for referance while building and then keep it for future use).

Good luck with you first plan built.