What's equivalent to 2006 package #5 in 2005 mode

I plan to buy a new Prius before the end of the year. Looking at the 2006 information here on the site, the package #5 would be my first choice and package #4 my second choice.

IF I decided to buy a new 2005 instead due to the cost difference, what package in the 2005 is equivalent to the 2006 packages #5 and #4??

I just want to be comparing apples to apples when I shop.

And....on the Toyota site, they have interior options of Cargo Net $49.00, Fabric Guard $169.00, Molded Dash Applique $279.00 (WHAT IS THIS?) , Carpet Mat Set (5 Pc)$186.00....my question is..... Can I get these things cheaper somewhere else? I would like to have all these (except maybe the molded dash applique since right now I don't know what it is).

Anyway, can someone help me clear up my confusion with the option packages?

THANK YOU!