I haven't been able to confirm this, but some sources report that the Indep guns are actually factory built Portuguese FMPs (like the older PARs imported G3S) with some US parts to allow import and sale. If that is the case, then we're talking about a really great rifle and not a demilled parts gun, unlike a typical Century G3.
Most Indeps I've seen were going for $800 to $1100. I wish I knew the whole story so I could confirm if that value is worthwhile.