Need vinyl screw strip cover with rain gutter

[fjyeti]

My 1984 Executive has a screw strip around the perimeter about 5 inches from the top.  The screw cover has a rain gutter/drip rail formed into it.  Most of it is sun rotted.  I have looked high and low for a replacement-anyone have any ideas?  I can put regular screw strip cover on it but then wont have a drip rail.

[Oz]

You can use anything which serves as a suitable substitute, it doesn't have to be OEM, as is the case with many things.  Creative thinking has solved countless issues with parts no longer manufactured and nearly (if not entirely) impossible to find.