I think ideally death should not be abolished entirely, but it should act as a teleporting system as when you die you get in the afterlife and then you just reappear in any place you want. but as penalty death will be pretty painful and not that easy to happen

or it could be reincarnation system but with the one catch, that baby will reach somehow autonomous age in a week and here your penalty is that you will be stuck in pretty helpless form for some time but you can impregnate anyone and make them give you a birth.

That way you avoid all problems of being stuck.

Without death, there will be no more good and evil in principle because everything, even pain becomes a good thing as it does nothing more than motivates you.
To eliminate suffering completely I would only make people feel pain and disscomforctr for thing they are capabale to change in theory.