Wollensak Raptar lens 210mm f4.5 lens should make for a good portrait lens. Covers 4x5 or 5x7 formats.
There are cleaning marks/scratches on the front glass but I doubt it would show up in the picture, unless shooting into the sun. Betax No. 4 runs good at all settings, doesn't incl. flange. Rear element is too tight to unscrew.
$125 plus shipping, Paypal accepted, and as always % contrib. to APUG.