For what it's worth... Turner's is really the best bet if you can wait.  Their slings are made to exact standards to replicate the original design (other manufacturers make repro slings, but do not conform to the exact design).  If you're talking about using it for shooting, then the 1907 NM sling from Turner's is the way to go and will serve you well.  As Butlersrangers stated, you really don't want to use the 1887 sling for anything more than carry.  If you're only using it for display, then what's the harm in waiting?