Regarding the protection of the lander from the harsh environment, would it be possible to put some kind of shelter around the lander and its immediate area? I am envisioning some kind of tent made of special materials that would unfold in an area around the lander. I am thinking an inflatable type would not work?

How about using the surface itself as protection? Could the lander have a way to dig down enough to cover itself with regolith? Would a Deep Space 2 type penetrator work?

These may be considered "radical" ideas, but exploring Venus for more than a few hours demands radical ideas.