You also run into issues of what do with the wings on the way up. You can't just put huge ass wings on that thing. You likely need it deploy-able.
And then the wings would also survive the flip and vertical landing. Or if you want to land like a plane, then you also need landing gear.
So there is really no way to add wings without adding a huge amount of mass. You are building a completely new thing.
There are some super cool mega-space planes designed in the 70s (I think). But of course these were never built or even tested. I remember they had some overlapping metal heat shields and a big ass delta wing. They would also start vertically and use air breathing engines.
And then the wings would also survive the flip and vertical landing. Or if you want to land like a plane, then you also need landing gear.
So there is really no way to add wings without adding a huge amount of mass. You are building a completely new thing.
There are some super cool mega-space planes designed in the 70s (I think). But of course these were never built or even tested. I remember they had some overlapping metal heat shields and a big ass delta wing. They would also start vertically and use air breathing engines.