If this is important to you,
You bought the wrong rifle. 28 years ago, I had a Savage 110 CDL in .30-06. It had a detatchable box mag. Was also left handed. Brand new, but couldn't be fired until the extractor got replaced. This kind of soured me on Savage bolt guns. Just a personal thing. I do have a Model 99 I am real fond of.
If the hinged floorplate, or the detatchable mag are important features to you, you should have gotten a different model rifle. Perhaps it can be customized to meet your wishes, but a simpler course would have been to get what you wanted in the first place.