finally, an update!

After I received all the cooling tins for the engine, I could continue to assemble it:
all of the satin black powder coated stuff + the dog house  fan shroud (not shown)

assembly of the geberator tins and fan:

the engine so far: intake manifold, generator, coil and header + heat exchangers installed

of course, I installed a brand new clutch 

here it is, on the lightened flywheel, an old (but cad plated) input shaft helps locating / centering the disc: