royal p-38
Old Royal P-38 was really a chore to build true. And light. Pretty much "carve everything away that doesn't look like a P-38" That was in '71 and they might be better now.
However I just bought a Marutaka J2M3 Raiden a couple of months ago. All Japanese plans, one sheet of pigden English instructions("Gluing F12 to it's base, or F11." type stuff ), but my bigest disappointment is that the outline, including the spun aluminium cowl, is WAY off! This is not a scale airplane kit, this is a "bears a vague resemblence" kit!