Experience exciting rocket-launching fun with this vinegar and baking powder fuelled rocket. Make the rocket, take it outside, fuel it up and watch it blast off with amazing thrust and fly up to 30 feet. Each kit contains a super lightweight rocket, rocket fins, launching pad, decorative stickers and full instructions along with fun facts. 14 Years +

This product is really good and very simple to do, however make sure you launch, and more importantly, land onto grass. Our first attempt was off concrete and was great until it landed back onto the concrete. Although there were no obvious breaks, the landing damaged the rocket and now the mixture leaks out of the bottom and it doesn’t work anymore. As with the other review, we have purchased another as it is definately worth another go!

I know someone who bought the Estes rocket back in nineties. Estes have discontinued the kit, although they can be found on ebay from time to time. There are also other third party companies that make Saturn V kits.
Indeed you can order the Saturn V from Apogee Components‘ website.