Hi Paco.
Those manuals are very hard to find these day's.
And when they come up on ebay they cost a lot.
Bayonets can still be found and in the condition like on the table will cost around 300 euro's.
I know some one who has two very nice bayo's. One is the sudan version and the other is porto.
Both are like new and the porto will cost at least around 500 euro while the sudan will set you back around 750.
There is some one in ontario canada who might have a blank firing attachement and the speed loader.
I bought a scope mount from him a few years ago that will let you mount any scope to the carry handle.
Slings are very hard to find also. If you're looking for a porto sling, you can use a dutch FAL sling.
These are 99% the same. You only have to ad a buckle for the stockmount
Especialy with all those Americans trying to make nice AR10 collections items become scarse.