OK - it's slow but at least started. I'm not the type to follow instructions, so I started with the engine. As you may have noted in the pictures at the beginning of this post, the previous owner coated the engine parts with some sort of thick & sticky flesh-coloured substance.
Maybe because at production date of the kit the appropriate colours were unavailable. The instructions ask for a mix of Aluminium & Orange in 3:1 - could end up in some ugly 'flesh'.
Anyway, I removed this coat of sticky glub by bathing the parts in good old oven cleaner. It took one complete day but everything finally came off.
The main block came together easily and I coated it with Testor's Metalizer Titanium (crank case) and Tamiya Titanium Gold (valve covers, front and end plates).
The brackets for the injection valves gave me a first and difficult decision. Apparently these are made from resin reinforced with aluminium. Instructions propose the 'flesh' mixture, my reference pictures show different versions. I briefly considered robrex' idea of making copies in resin, but I was scared off by doing this in the above mix of materials. I ended up in painting the main body with Metalizer Magnesium and the reinforced mounting struts in aluminium. Looks nice enough for me.
The pictures above show the parts in the process of drying when I also fitted the mounting plate for the ignition / injection assembly with the generator already painted & fitted.