here's a better idea:
just use a standard install. It is very difficult to buy a <1G flash
media anymore that isn't covered in dust, so it is hard (if not nearly
impossible) to justify building a crippled system anymore.
Yes, it is cool to think you have shrunk an OS down to 32M and still
have it do the job, but if you are just following someone else's script,
you get no Geek Points by doing so, other than it proves you can follow
instructions (which in large part indicates other people can WRITE
instructions).
So, you get no functional gain, considerable functional loss, you get
no Geek Macho points and you irritate the rest of us when the
inevitable problems crop up and you come running to us for help.
If you want to prove you are cool in a constructive way, run -current.
You will experience far less down time than you will running wacko
customized stuff you don't understand, and you will help make the next
release of OpenBSD better.
Nick.