dont mind but given ur budget of 30k the stuff u will be buy will be of entry level. and installing them in kick pods will be waste of time and effort. I am not dis hearting u. Ya there will be diff in sound if u install the same speaker in kick pod and the door location but why spend extra ...
look here is a install with door location speaker install.
http://www.buwaldahybrids.com/Project%20Altima.htm
and this guy is a world champion.........lol