OK, once again, I must admit that the panel looks stunning. However, I was a little too quick with the research at the time. It turns out that only L-4A and L-4B models were equipped with cream face instruments. The L-4J should have all black instruments with the exception of the Steward Warner oil temp- and pressure gauge. I'm working on gathering all original instruments for a more authentic panel. I have the B-8 air speed, but missing the altimeter for now.
Once again a big thank you to my cousin Sander who has worked hard preparing all connections to the panel: oil lines, primer fuel lines, static and dynamic etc. And most of all his great effort creating a working BATTERY indicator which is very rare in L-4J's today even if most J models had them.