Why do it the hard way when you can script it?

cat myports.sh
ftp https://ftp.openbsd.org/pub/OpenBSD/snapshots/ports.tar.gz
tar xzpf ports.tar.gz -C /usr

osver=`uname -r`
mkdir -p /usr/distfiles /usr/obj/ports
mkdir -p /usr/cache/pub/OpenBSD/$osver/packages/amd64

chown metheuser:metheuser /usr/distfiles 
/usr/cache/pub/OpenBSD/$osver/packages/amd64
chown metheuser:metheuser /usr/obj/ports

chmod 775 /usr/obj

chown metheuser:metheuser /usr/ports
chown -R metheuser:metheuser /usr/ports

> /etc/mk.conf
echo WRKOBJDIR=/usr/obj/ports >> /etc/mk.conf
echo DISTDIR=/usr/distfiles   >> /etc/mk.conf
echo PACKAGE_REPOSITORY=/usr/cache/pub/OpenBSD/$osver/packages >> 
/etc/mk.conf


At this point metheuser can "cd /usr/ports/math/minisat"
and "make package" and it will work.

Note that the original tar file creates files with group = wheel so you 
can simplify by adding yourself to wheel.

Note that the tar files are incomplete because tar and you have to 
update with

     cd /usr/ports
     cvs -d $YOURMIRROR:/cvs -q up -Pd

where YOURMIRROR is one of the published ones, but probably not one of 
the first two or three.


J