How much are you looking to spend?

You can have a De Haan custom made to suit you starting at $1695. That's stocked to your dimensions, and choked to suit you (fixed or tubes).

Of course, you can also have Spanish guns made-to-order. You'll have to pay quite a bit more, but they can be ordered with ejectors. Arrieta is where I would look for a gun from Spain.

Like the 28 Ga? Check it out:

28 Ga. Society