I have the the Penske 8987 (high speed and low speed compression + rebound damping). It's a fine shock but preload adjustment requires a special tool plus a long enough Allen wrench to undo the set screws, not as convenient as a knob, but then adjustments are infrequent once you get it dialed in. I spent a lot of time messing with settings and keeping notes until I found what I liked. Now it's easy, just click and count, give or take a spring swap.
Here's the trick to the age-old suspension conundrum that one setup doesn't work for everything. My 2 main ride profiles are solo/empty commuting or 2-up/loaded touring - pretty far apart suspension-wise. Touring includes as many twisty roads as we can find and we don't shy away from dirt.
The trick is 2 springs. I use a 650 for me and a 950 for us. I made a worksheet with the tools list, torque specs, order of disassembly/assembly, and suspension settings. Having a fair amount of practice, I can swap the spring and dial the settings in under 45-minutes. I do this maybe 3-4 times per year, twice per trip. For me, the effort is totally worth it to have near ideal suspension for both of my main ride profiles.
If it's just a day trip, no luggage, then I'll crank up the preload a line or two and that's good enough. If it's a serious trip, then I'm serious enough about the handling to spend the extra hour and a half. I tried running the heavy spring with just me, but no way. I have a 3/4-ton pickup if I want that kind of ride quality.
Or you could buy a BMW R1200GS with Dynamic ESA (automatically adjusting suspension). I'm not being facetious. We did the Edelweiss Pyrenees Extreme tour this past June and rode that bike, Adventure model no less. My wife proclaimed the handling and ride quality to be superior to our Tenere. I'm not real happy about that but can't honestly disagree. I'm not willing trade my money and wrenches for high-tech gizmos just yet, so I'll swap springs and click knobs with a smile on my face because I feel like I know what I'm doing.
Whatever shock you choose, make sure it's set up / sprung properly for you. With the weight you're packing, you'll have a substantial spring to maintain stock ride height and geometry. For two-up riding with ~25kg less weight, I'm using a 1000 pound spring on a 8983 Penske shock.
Good luck!
~G