How close is the bike shack to the security desk? I ask because the solution that's been implemented at my workplace is to just have a set of tools at the security desk available for the asking. No need to tether them. I don't know how often they get used. They have a pump, but I've opted to leave a pump of my own at my desk because my desk is closer to where I park the bike than the security desk is (I don't come in the main doors).

Most people who know how to fix their bike with basic tools are going to carry a multitool with them. If you want to be helpful, you really need to offer better tools for cases when the multitool isn't cutting it. For instance, my multitool has a chain tool and a spoke wrench, but they are kind of awkward to use. In my garage, I always prefer a proper chain tool and a good four-sided spoke wrench. It's kind of the same concept as the pump. I carry a small pump with me, but given the choice I'd much rather use a proper floor pump. My wish list would be (in this order of priority):

A high quality floor pump that supports presta and schraeder valves
Kool Stop tire jack (makes a huge difference with difficult to mount tires)
Park CT-4.3 chain tool (CT-3.2 would be OK)
Abbey Bike Tools dual sided Crombie with chain whip (for cassette and brake lockrings)
P-handled 4, 5 and 6 mm hex wrenches

As for the repair stand, I'd suggest something like the Park PCS-10. You're telling people that this shack is a secure place to leave their bike. If you believe that, you should have no problem leaving a portable repair stand there. If you have the budget for something like one of Park's pro repair stands that mount more permanently to the floor, all the better. Just don't spend a fortune on something that isn't functional.

Finally, I can't help but notice that the two bikes pictured in your shack are at the ends of the rack. That's not coincidental. That type of rack isn't inviting to anyone who cares about their bike. The ends approximate something better.