I’ve got a wall mounted one, but with a twist. Sorry, but I can’t copy whole links on this tablet, but if you search “home mechanic wall mounted bike cycle repair stand” on ebay, the first one listed is the one I’ve got.
The twist is I’ve mounted the triangular bracket to an old fence post. This allows me to clamp the post into my bench vice, thereby being able to adjust the height for different jobs.
You could buy a second triangular thing and screw it to the wall outside for sunny day fettling.
It works really well as a stand, very steady and strong, the only disadvantage is it makes using the bench at the same time a bit tricky.