I hate to be the bearer of bad news but I foresee a lot of potential problems and wasted money. I see severe teeth deterioration. What is causing all the deterioration? Do you have diabetes, heart condition(s), dry mouth from numerous medications, other severe health problems? Do you use recreational drugs like meth? If you don't manage and resolve the source(s) of deterioration, any dental work will fail including implants such as that root canal tooth #28.
I'm not a big fan of bridges especially long-span bridge like in your case. It places too much stress on the abutment teeth. Some dentist may drill multiple abutment teeth but that means more teeth to fail. You may consider treatment (temporary) partial denture and stabilize your teeth for further restorative options. If your teeth further deteriorates, you may have to consider full dentures. If you want implants, make sure you are healthy and don't smoke. Otherwise implants will fail.