charlesp
Take a look at the Saito 125 and compare it to the OS 120. The OS120 is 864g (30.5oz) and the Saito 125 is 700g (24.69 oz) and is a more powerful engine. Weight is an issue with war birds so I wouldn’t go much heavier.
I have the Saito 125, Century retracts and all the goodies to put it together but there is a couple of other projects ahead of it.
There is a lot of good suggestions in this thread but I’m just going to it build as is. I have a fiend who has been building for over 35 years, he suggested to build it and not worry about glassing etc. But if that’s what you want to do then do it. As far as the graphics some people think they suck but I happen to like them, which is what attracted me to the plane in the first place, I like that rugged look. Although I may change the numbers just to be different.
Check out this web site http://www.warbirdobsession.com
Hope this helps, Good Luck and Happy Flying!
Shabova
[8D]