Thanks everyone for the kind words! Progress has been made on my engine which needed those Aviattic primer cups. I had to make spark plugs from big bolts (shaved off spare AFV model parts) and thin styrene rod. I also decided after painting my intake manifold a beautiful copper colour to wrap insulation around it with Tamiya tape. Most of the period photos showed it. The ignition wires were done with 0.10" lead wire.
Cheers,
Gary
Primer cups from Aviattic added with spark plugs made from scraps.