I have an idea on this. maybe using portal to set up the new spwn would work. If an old spwn gets destroyed, the new one would apear where a portal particle is. If there is more than one portal particle, the spwn would go to the lowest channel and work its way up.
i mean that i can create a plcn that clones spwn and plcn will be switched on and then off (when it cloned spwn) when the stickman is spawnet the spwn gets destroyed by aray shooting bray. @Demoman200 that is good idea too