Talk to Rich Cole - he may be able put together a custom 28 ga with 30" barrels in your price range. It won't have sideplates or the 687EELL engraving but may have some custom engraving.

More importantly, the stock would be custom-fitted and if you want something a little heavier for higher-volume shooting, I would expect him to be able to match your weight requirement.

Most importantly, you will end up with a very nice and more unique gun.

Such a long, long time to be gone, and a short time to be there.