If you can fix it down at the edge of the carcass and the joint edge (especially that far edge), you've got a pretty doable 1/3, 2/3 cantilever there. I'd maybe not sit on it - I think you'd risk the joint edge starting to lift/split - but regular, ahem, breakfast activities will be fine.
An inbetween step rather than support legs, would be to use a couple of shelf brackets. Means you could move chairs in and out easily still.
If you can fix it down at the edge of the carcass and the joint edge (especially that far edge), you've got a pretty doable 1/3, 2/3 cantilever there. I'd maybe not sit on it - I think you'd risk the joint edge starting to lift/split - but regular, ahem, breakfast activities will be fine.
An inbetween step rather than support legs, would be to use a couple of shelf brackets. Means you could move chairs in and out easily still.