Photoshop two products together

We need a picture combing two existinng products into one unit under the sink
ie https://www.uk-water-filters.co.uk/products/undersink-home-water-filters

andhttps://www.uk-water-filters.co.uk/products/anti-scale-undersink-water-filter-system

Please check this quick video

https://somup.com/cOhtXbVV5PB 

NB the pipework must be as outlined in the video

More details:

What style do you want the final image to have? Photorealistic
What angles or perspectives should the final image include? Front view
Are there any specific colors or finishes you want the units to have? Standard factory finish