Keep in mind that while the AWB may be history, your FAL still has to have the proper number of US made parts to be legal.
There are several FAL flash hiders available, many of them pretty cheap, long and short, so that is probably a good first choice.
You can replace the butt stock, you just have to know how to take it apart, and also you have to deal with a really long spring while trying to put it back together. Tapco sells a couple of inexpensive tools to help with changing the butt stock and grip that are well worth the investment.
It looks like you need the whole Para lower receiver to change to a folder, but I have not seen one of these in person, so I am not sure how they work.
The green SAW kit from Tapco looks pretty cool, but you could have done all of that before the AWB went down in flames.
Personally, I would pick a flash hider, buy the green saw kit and put on a nice camo job of your choice over the whole rifle.
Post some pics when you get done.
Ray