One point you missed, I think (didn't notice it when reading through the OP and replies): if, for any reason, the dominant/top you're meeting feels that a safety net is unimportant, or objects to you setting up safe calls, meeting in a public place, providing information etc., then do NOT go ahead with the meeting.

Also, I heartily recommend that you have the dominant provide a CRB (criminal records check), copy of drivers licence and a blank sheet of paper. Have the dominant/top press his/her hand on the paper, you flip it and get a hand print on the other side of the paper. Fold it and put it, together with several hairs you pluck from the dominant/top into an envelope with the CRB and drivers licence copy and post it to your safe call person yourself. If anything happens to you, that info will be vital.

Don't let the dominant know your licence plate either.

Yes. I know. It sounds very untrusting, but as the OP mentions, you're on a blind date with someone who wants to hurt you. Safety is paramount until you know the other person is trustworthy.

As a dominant, that is precisely how I always managed my first meetings. In addition, the first meeting was always on the girl's home turf, not mine.