you can buy them in hobby shops
In your dreams
The best place to buy RC planes is nitroplanes.com, they have great sales around the holidays!
Yes there is a specific fuel needed to fly a RC Plane. This fuel is: Rapicon Max Power RC Airplane Fuel 15% You can buy it here: www.amainhobbies.com
Both RC plane are awsome because they are both planes.
There are several places to buy discount RC plane parts. On www.rchobbyexplosion.com for example, you can buy a Megatech Mega Nitor 2 Deluxe Glow Plug Starter for $24.95 which saves you $15. Another good place is www.ebay.com where you can bid on items, potentially saving quite a bit of money.
You have to get another charger, no choice if you want it to work. -Best choice is to buy another plane or helicopter that has same batteries and charger, then you have 2 models that will work with the new charger.
If it is an electric RC plane then all you will need to pay for is the plane and if you plan on crashing a lot some spare propellers if it is an RTF or ready to fly version. If it is an ARF or almost ready to fly you will have to buy a motor too.
Stores and companies that deal directly with the hobby of electric planes could help you find an electric rc plane. Also, if you look on Ebay, Amazon, or Craigs List you might be able to find someone who would like to sell one to you.
in 1871
wattflyer.com
The number of pieces for an RC Plane Engine vary on the model of the plane. Here's a link that you may find helpful: http://www.rcairplaneswarehouse.com/
If you buy a nitro RC truck, the prices start at $169.99 if you get them at Hobby-eStore. Looking at the prices, some RC trucks are on sale for less than that. http://www.hobby-estore.com/RC-Trucks-s/1323.htm