Don't forget an extra WaterPump...and Gas Cap.
Bud have you looked at the American Muscle Car Collection by Matchbox?
I have the first two edition sets,& they are a decent 1/43 scale.
They can be found on Ebay for $10.00 a car,but I have not seen a Nova yet.
Six cars to set,and Highly detailed.
Nearly every American Muscle Car has been included in their series.
http://cgi.ebay.com/ws/eBayISAPI.dll?Vie...ssPageName=WDVW