I'm a Givi V-35 fan. They're a good size, and they look good on the bike IMHO. The only change I made to the V-35s was to replace the rear reflectors with Admore Lighting LED lights that function as running, brake, and turn signal lights - really very clever.
My Versys came with a Corbin saddle and it suits my backside very nicely, so I'm a fan of it as well. Crash bars are wise mostly because no one plans to crash but topple-overs do happen. Seems to me that Hepco-Becker bars are popular among members of the forum.
Magnetic tank bags can be problematic because of the plastic side panels although I found a smallish Joe Rocket magnet bag that stays put. It's probably better to get either a strap mount or one of those fancy fuel tank ring-mount jobs. Givi also makes one of those as I recall.
You might also want to consider hand guards (lots of folks like them), a windscreen that offers improved protection, and a rear hugger - it will keep a lot of crud off the back end of your bike (and bags). Mine is a Skidmore product though there a bunch of other brands available. Then, of course there's always a GPS mount, cup holder, cell phone holder, and the kitchen sink!
On a more serious note, a tire plug kit and mini air pump can be worth their weight in gold. I'm not a fan of CO2 cartridges because once shot, if not enough to inflate as much as you wish, you're stuck. I believe the technical term is screwed. Others may disagree.
This is fun - spending some one else's money, that is.
Great photo by the way. Are you Army aviation by chance?