The model on the left shows the plane as it came from the box. The model on the right shows the conversion. Converting kits is not extremely difficult, but it does require you to think ahead and to know the kinds of things that are required to make the changes work. If you cut too much from a part, it may not fit with another, and you ll end up throwing your mistakes into the trash. The basic tools and supplies required for kit conversion are reference materials, a hobby knife, saw, file, sandpaper, and cement or epoxy.
Some conversions entail using parts from other kits.
That s why you should always keep the extra parts from models you finish for use in your conversions. The average avid model builder has a chest full of extra parts left over from the dozens of models he or she has assembled. To make it easier to find things fast when you need them, separate your extra parts into categories, such as airplane fuselage parts, tank parts, that sort of thing. Some modeling pros like parts of different scales in separate bins. A few experts use plastic stock for their conversions.