A little more tinkering in Photoshop resulted in the image below. Blending the natural colour and Hubble palette versions perhaps gives the best of both worlds. The main structures still stand out more prominently compared to the natural colour version.
Image details: Modified Nikon D5500, Tamron-100-400mm-f4.5-6.3 @ 320mm/f6. Total of 90 minutes exposure time (45 x 120 seconds) at iso 800. Tracked with unguided AstroTrac TT320X-AG. Stacked with Deep Sky Stacker. Edited with Photoshop and Starnet++