Where are you located? If you add your location to your profile, then if any meet-ups happen near you there will be a greatly likelihood that you will be notified of it. If you are concerned about privacy, then you can just list a state, province, or whatever.
If you don't want to list your location, do you know how to do a location search of the members list?
That razor in the first photo looks like a good one to use for practicing honing. Just make sure that you use tape and change it long before it wears all the way through to the steel. As the tape wears down the angle of the bevel changes and the edge no longer makes contact with the hone.
18cm x 6cm is an adequate size. For a beginner, one of the biggest challenges is keeping the blade flat on the hone along the length of the blade. Narrower hones make that a lot more difficult for beginners but your 6cm width is good enough.