Hi Chuck and congrats on getting one of the nicest ED acoustic models (IMHO). I bought mine new about 1975 and I just love it.
The only knock against the design is that adjustable metal bridge which is a major tone sucker. After many many years of using it I finally took it out and replaced it with a full sized Tusq saddle and the change has been astounding! It's a simple change and does no damage. If you're interested you can read about it here:
viewtopic.php?f=4&t=1802&p=5122
As for the pick guard, it's likely an Epi will be a near enough match. At worst you might need to adjust the curve at the sound hole which can be done with a bit of patience and care .There also seems to be a lot of variation in the design. They all have a Dove but there are many differences in the background and even the bird, so you might want to check the design against the picture of mine in the above link if you desire to get as close to the original ED as possible.
From what I understand the genuine Gibson scratch plate is not available for purchase and not even the Epi is the same design. Everything is an approximation o f the original. Just choose the one you prefer.
