Someone

on *:TEXT:.sell *:#: {
  if ($nick == Noble_Brian) || ($nick == `Jen`) {
    if (%selling == in use) { notice $nick This script is currently in use, sorry! | halt }
    set %selling in use
    timer $$2 45 [[ $+ $$3 $+ ]] $$4- PM $nick for details.
    timer 1 $calc($$2*45) unset %selling
  }
}