[cypher]

Coated mesh definitely isn't safe, out of the two you linked to I think the first one would be better, it should be stronger & as long as it's for a syrian 13mm is ok.
How are you fixing it to the frames? You need a decent pair of wire cutters ideally so you can cut as close as possible to avoid sharp bits anywhere but if you're fixing it to the outside of a wooden frame then it's safe enough for your ham & only your fingers you need worry about with sharp bits!