What year do you have? We have a 2010 3.2 R-Design and a 2017 R-Design T8. Our 2010 has made more progress over the years as it's seen more adventures although our 2017 has seen some pretty spectacular scenery of it's own particularly from our summer trip this year.
Here are some ideas based on our 2010. Thule basket with adapters I made to mount 2 full size spares and 2 20L Wavian cans. Needed those for our ALCAN adventure a few years ago including going up to Inuvik on the Dempster Highway.
Carry solar panels to keep onboard battery topped up on camping trips while ARB fridge is hooked up in the back's integrated 12v outlet.
For our frequent late night drives to ski camp added VisionX 4.7" LED with amber and blue lenses depending on conditions. Used Volvo's Aux Light Kit to mount and integrate them into Volvo's CANBUS. I use Volvo's Aux Light switch integrated into the dash to activate with high beams.
Here we were for a rest stop at Fort McPherson, NT on our way to Inuvik. The year we went up the Corps of Royal Canadian Engineers was finishing up the summer road up to Tuk so Inuvik was as far as we could go.
Here's our 2017 - first order of business will be new tires when the stock Pirelli are worn out on these wheels. On the original R-Design wheels I already replaced the Pirelli with Nokian Studded Hakkapeliitta 9 once the Pirellis on those wore out.