nah thats a realy bad idea^^, maybe like after spawn they are XX sec invul and than the spawn protection is gone ...
because the problem is if one guy is town and is flag... the other will start to kill him.. they turn to pink to so they are attackable to.. its like mass zerg in town :P
the most cost on a server come from the windows license, it realy kicks good price good qualty... i can recommand it i know like 10 person that host their and all are happy with it... better than ngzserver
add a new line for bypass to Bypasstoserver.java (i dont know the right name but its samething like that^^ ) there u will see how its made for admin gm shop so u can change it a bit and make it work for your item too
because u need to compile before the l2j-mmocore, and l2j-mmocore
and like it written on l2jfree forums "DO NOT USE THE TRUNK, IF U HAVE NO CLUE WHAT U DOING"
Maybe read that , than u know for what is the trunk http://en.wikipedia.org/wiki/Trunk_(software)