Looks like this is handled pretty much.
On tubes, a tubing bender helps. Lots of places have them. Otherwise, can build a wood cradle and lash to something. Lash or use something else for leverage. Plan and push. I have straightened lots of things this way. I even uncompressed a Grumman canoe I rolled a Pinto over on. The lashing there let me untwist it once I got it unflat. That was in 1986 and I might take it out this evening!! If a tube is very much out of round at all and cannot be pressed flat with a vice or hydraulic press, it's toast.
On the Versys, the welds for the threaded end caps are a joke. Need proper welds anyway. So any aftermarket steel bar can simply have threaded caps (EZ make) welded on.
Plastic in general can be made as good or better than it was, but takes skill. Various instructions online. Depending on plastic material, can weld up or lay in. I just try melting with a soldering iron to see what's what. Reinforce with fiberglass tape on back. Can even lay in a washer to beef up attach points. Skill and technique required to get level and fair on the outside. Have a rashed Versys in the driveway now, probably just fill with that 3M stuff, then paint both sides to match with the anti wear Rhino type stuff in black, or cover with vinyl snakeskin or leather pattern. Or a mix. Make look authentic!!
Often cheaper to just buy new. Not expensive for Versys. Many bikes can get fancy aftermarket surprisingly inexpensively!!
Broken mirrors - used to be able to get a mirror shop to replace. Don't know about modern stuff.
Aluminum breaks - find an expert. Safety class items especially. I recall getting welded aluminum post-weld heat treated, tested for something or other. Long ago. Find an expert or live without.
Alignment. Forks are easy. Piece of glass across the legs should hit both evenly. On the other hand, a good solid blow that bends stuff can do more than twist. GMDAtl.com
or equivalent can do a real check of frame alignment. Many bikes are repaired and ridden slightly twisted. No fun.
In general, moderate hit and slide won't do much, but bikes are pretty critical on many things, worth tearing down a bit, checking all the fasteners, checking alignment, looking for concealed damage. In a hard hit, will find odd places have difficult to see damage, like cracks, that may worsen through time and then kill you suddenly. Accident report says "operator error."
No worries about the bike. Wear the gear, learn the bike and riding, consider it all committed to the road and expendable. If it comes back repairable, great. If not and you're OK, then money well spent. I regularly want to call X or Y and reach for my phone only to remember they are no longer with us. Eye on ball - walking away is excellent. Even riding conscious in an ambulance is OK!!!!