Not sure if you have an A or an XA but it should be obvious from the panels and stickers in these diagrams.
It might be easier tou source the right part with a part number or these blokes themselves might be cheaper than a main dealer price in the UK.
https://www.motorcyclespareparts.eu/en/Suzuki-parts/2019-dl1000axa-v-strom-motorcycles/fuel-tank-cover-dl1000a?_gl=1*8e6hlj*_up*MQ..*_ga*MjExMTU1MDk4NC4xNzE1ODY4NTU1*_ga_EPD8J02JH6*MTcxNTg2ODU1NC4xLjEuMTcxNTg2ODU1OC4wLjAuMA..*_ga_6BMCJMKCL9*MTcxNTg2ODU1NC4xLjEuMTcxNTg2ODU1OC4wLjAuMA..
https://www.motorcyclespareparts.eu/en/Suzuki-parts/2019-dl1000axa-v-strom-motorcycles/fuel-tank-cover-dl1000xa?_gl=1*8e6hlj*_up*MQ..*_ga*MjExMTU1MDk4NC4xNzE1ODY4NTU1*_ga_EPD8J02JH6*MTcxNTg2ODU1NC4xLjEuMTcxNTg2ODU1OC4wLjAuMA..*_ga_6BMCJMKCL9*MTcxNTg2ODU1NC4xLjEuMTcxNTg2ODU1OC4wLjAuMA..
Failing that, just ride to a load of interesting places and cover all the dings and scratches with stickers ;)