Hi Peep,
You're right that there's provision in the guidelines and equally right that few of them seem to adhere to that.
I managed to meet them at a halfway house. I was self-prescribing and went to my GP, who wanted to help. Following blood tests, between my GP and my GiC therapist they were prepared to discuss my regime without actually prescribing them. So I still bought the meds myself, but at least I was monitored.
However, I certainly don't want to advocate self-med. The reason I went to my GP is that the wrong self-med regime nearly killed me.