Thanks for the help.
Crawled under today and checked near the starter.
D2AE - GA then on another tab just under the above is written 2M13
So even though there is nothing on that tab near the bell housing I reckon my number is D2AE GA 2M13 06023
So next step is to find some number stamps and stamp the block where it's visible at the bell housing.
Also managed to set idle and timing today. Seems to run best at 650 rpm and 9 deg.
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