Forced labor for life seems like an appropriate punishment than the death penalty.
Forced labor for whom? The victim or some company that wants to profit from slave labor? If its the former, then that might be a little harsh, but the victim must consent to it; it makes no sense why a judge knows better how to punish someone than the victim themselves. If its the latter, than it is a lose-lose situation. The rapist is a slave, and the victim hasn't been provided any restitution. The only entity to win from this situation is a government-backed company.