It would look amazing- like walking around on a Boos Bros butcher block.
From an woodworking and engineering standpoint, I'd say it'd be much easier to talk wife into different flooring. I suggest starting off with Margaritas.
Wood has very little strength in that direction, unless the pieces are longer, as in the butcher block. The glue won't be happy without backing.
Then add the temperature extremes of a wood stove to the mix.
Here is guy who sells- ask him Unfinished Flooring | Aspenson Lumber
Parquet End Grain - Kaswell
Please make your bus how you want and ignore naysayers (me).