This time in plan is build a helicopter from Republic of South Africa - Atlas/Denel CSH2 Rooivalk from HOBBY MODEL. This publish is 3rd revision from 2004, but still it is an old school model with hand drawing elements (this is offset print not poor quality ANSWER reprint ). So I know what it could be, knowing HOBBY MODEL quality and big problem with symetry in old models .
So let's go.
For first - main center frame (I added stabilizers made of toothpicks for drying time)
And first element - I add parallel reinforcements from 1mm cardboard on both sides were in future will be glued engines elements (so that the fuselage element does not undulate)