I was there last week and played gold, the course itself was in good shape and they already are making efforts to groom the courses, i saw fresh piles of limbs where they had opened up the fairways a bit. The tee signs are all in rough shape, some of the signs pointing you to the next holes were damaged or pulled up and laying around... all of this is easy to replace in time.
As for the junk...
They are really trying hard to cleanup the junk but it's everywhere and going to take years to clean it all up at this rate. With the right scrap processing machinery, like an excavator with grapplers, maybe a CAT with forks and a few dump trucks i would imagine a couple weeks of processing would really make the difference, but who knows the right people with that kind of machinery?
Its a bit overwhelming when you take it all in at once, my recommendation for those working on restoring the property would be to focus 100% effort on 1 course at a time.. Get one course clean and restored back to world championship condition, then focus on the next one.. etc.