Well, as they say… “Back to the drawing board.”…
Inspector No. 172: “I don’t feel very safe up here, especially with this silly concrete base attached to my feet! Ach, my heart!”
Group image description:
• Background: 'Flam-Out!’ 
… as in catastrophic engine test.
• Front Left: ‘Raketenantriebssystem’ 
(experimental rocket propulsion system). Just for giggles, I tested to see if it would actually fit inside a spare Tamiya Fuel Drum.
• Right side: The ‘Riesige Sprengbombe’ 
(huge explosive bomb) atop the ‘Bombenschlepper’ (bomb mover).
Another view of the catastrophe.
Lastly: I cobbled-together an ‘Engine Repair Platform.’ Note: Still waiting for OSHA (Oh-boy, Scaffolding Hazard Awaits) approval. 
You know the drill.
• Evergreen Styrene Rod (218) .020” (0.50mm)
• Evergreen Sheet Styrene (9009) .005" Thick (0.13mm)
Below: Reference image is borrowed from the outstanding ‘Lucious Lady’ build thread over at ‘AreoScale.’
(Image for reference only)
Happy scratch-building!
—mike