Are you a professional landscaper or landscape architect?
I'm a professional grower, but not a professional gardener.
Good Idea with the wall climbers, I hope they can cling-on to the porcelain tiles.
You'll need trellis for Clematis or Lonicera. Very few plants will be able to cling to smooth ceramic tiles.
Would covering a plant in fleece prevent it from getting air?
Use fairly light fleece, but possibly doubled up to give it an extra layer. You shouldn't have a problem with air getting to the plant. After talking to a Slovakian colleague about their climate down there in Slovakia, I'd recommend with any tender plants like Fuchsias, cut them back to just a few centimetres for winter and mulch with leaf litter, then cover with heavy fleece. Then expect the thing to die anyway!
snipers ghillie suit netting
I'm not entirely sure what this stuff is. I had a look on g**gle, but still not sure. Anything is worth a try though.