I believe 2-way for front isn't very good - i suggest you go for
3-way , Also i think - you should get a SUBwoofer, not a woofer.
Cutting metal is not that hard - you need a scissors for metal and pliers. Also - get a
4ga amp wiring kit I'll post pic's of how to get thru firewall shortly.
All of it isn't hard - it just takes time.
You may want to check out my
install page