I moved to MA last summer, so my Commander spend one miserable winter here so far. Who knows how easy or hard the shock bolts are.
Rust and Seizing of the shock bolts is the big variable, and MA winters definitely are conducive of rusting/seizing up those bolts.
I haven't done the job on a Commander, but have done it on many different vehicle including similar to the Commander.
Typicaly <1' long wrench/socket wrench, you will have to strain a lot, but its possible to remove the bolts. If they are rusted/seized bad, you need a bigger wrench.
A 2' breaker bar, if the nuts & bolts are in good shape very easy. If they are really rusted/seized, you'll have to strain some, I have broken the bolts with a 2' breaker bar.
Breaking Bolts, if its a through bolt, i.e. it has a NUT on the opposite side, (the Lower bolt on the Commander Shocks) is NOT a big deal at all, if you break it, both sides of the broken bolt fall out each side, no big deal, get a replacement bolt from the Dealer/Junkyard/Hardware Store, Make sure it is the same hardness scale if you get it from a hardware store.
Breaking bolts that bolt into the frame, that is a big deal, you have to drill out the section that remains in the frame and you may have mess up the threads, meaning you'll have to do a heli-coil to fix it. Can anyone confirm what kind of bolts on on the top of the shocks for the Commander? Are they through bolts or bolt into the frame.
And last, a trick for the next time, use some blue thread lock. Not that you need the thread to keep it from loosening,
but the thread lock will coat the threads and seal them as well and keep out the moisture and prevent the threads from corroding and seizing for the next time you have to take them apart.