I'm hearing you mate, that was an epic mistake chucking out the engine bits for my Kenworth T600, it's really done my head in, but I have managed to fabricate the relevant hoses and mounts for the turbos....then again, I have the V8 out of the Aerodyne kit that fits, but needs a couple of mods to suit
I'm still pondering over an additional colour to contrast with the red and silver, I keep

chrome yelllow just to cover up some masking lines which are noticable. The idea of using the barbed wire decals is another option as well dunno