We kept the interior white, as it should carry more to the resemblance as a ambulance.
I re used metal from the stretchers for the frames of the bed and cup boards.
I re used the original lights (4) just refitted with LED bulbs.

Two extra tube lights scarcely used as to greedy on electricity...( lights + convertor ).
I was for a while tempted to put solar panels on the trailer... On top of the ambulance there is the problem of the carport.
Changed my (solar) mind as to expensive for the gain in power. Daily consumption 24 hours totaling around 100KW. (summer)
Now I charge the leisure battery's with the alternator...ca 2.5 hours driving...to restore daily consumption.
When hooked up use of battery charger. In the future 2.5KW generator in the trailer.
Writing was not invented to look for spelling errors

Ford Anglia '62, Mercedes 200 '86, Transit ambulance/camper '88, Mercedes CE300 '89, caravan Puck '75
My ambulance conversion