PS. for the purposes of establishing replacement cost, just look at
prices on the newest Sage #5 weights, and take the top of the line.
The RPLīs were once the top of the line anyway.
Some stuff like this may also be of use to you;
http://www.yellowstoneangler.com/Fly...d testing.asp
http://www.outdoorreview.com/cat/fly...1_1389crx.aspx
If you search for #5 wt reviews etc, you will find quite a lot of such
stuff, which may help you find or choose a replacement.
TL
MC