the chassis and track units
these went together very tightly
After adding the wheels I tried to attach the fenders to the lower hull. This is where I encountered the problem. Perhaps it is just me, but try as I might I could not get the parts to fit together. Always having been one for the most direct approach I cut away the portion of the offending part that was causing the trouble (see illustration below) and things went smoothly.
two quick cuts solved the problem
Once the lower hull and fenders were joined the top hull dropped into place and was ready to be joined to the chassis assembly.
all parts fit snugly enough to not need gluing
Highly recommended, John