Here's the problem, the front accessories on the '03-'08 front cover are in the way; you'd need a spacer bracket to move the A/C compressor and alternator out of the way, after that you're trying to make a kit work, most likely from a LX car, but the cars use a different length crank pulley so you'd either need a custom made blower pulley or you'd need to swap timing covers and all the accessories over to the LX car ones which involves notching the passenger side frame to clear the new alternator placement.
If you physically get it dealt with you will need to deal with the trans because the 545 will NOT handle a positive displacement blower's low rpm power. The 46rh swap is an easy one for you and will handle up to 700hp with minimal effort on your part.
