Created attachment 209358 [details]
source code archive.
Just found that this port is now unfetchable and had the distfile lying around on a builder.
Please find it attached.
I can sponsor a mirror for this if needed, just ask.
Looks like pftop is possibly EOL? Website is 404. Maybe author is no longer an engineering student, and has either not made a new site, or has abandoned this project?
Fixed in r520217