On the subject of hood tachs, I've heard that the repro ones aren't all that great and neither are the originals. Personally, I think it looks pretty cool, but if it is not that functional as a whole maybe it isn't worth it.
1969 6.0 Firebird: project started (2/19/2014 LQ9 and 4L80E on the way) Information overload mode on this build 2013 Chevy Volt/2005 Ford F350 6.0 PSD CC 4x4 Lariat/2008 Honda Gold Wing Looking for 68-72 A body Wagon, prefer 70 Chevelle Wagon