Hi Toshi,
Ufff ... you have a huge amount of "row material" to build a model. These two models are really nice. The Kingfisher is one of my favorites ... i love the hidroplanes (one of my next project it's going to be a japanese one).
You are doing a great work! Much encouragement with it!!
In a project with so much work to do is very usefull to think in the parts ... and not in the whole project, i mean, thinking just in the part of the build you are now doing (engine, seats, controls .. ). You are building each part .. and bit by bit ... you finish!
I look forward for the next steps!
Kind Regards!!