Build in blue foam not balsa. Cover in brown paper. Cheaper quicker and much easier to repair.

I would not advise a 109 as a first combat model as it will tip stall and is difficult to get away on launch.

Here is a link that will get you started. http://home.att.net/~daniel.steill/

UK kit supplier of blue foam models Mainly Models Hitchin http://www.mainlymodels.com/ OUR RANGE

Best first model Hurricane for a 15/20 engine and Hellcat for a 25.

PM me if you want more info. I have been flying 1/12 scale combat for some years now.

J.Duncker