Ok, that at least got me some info. The install is failing with error 0c8DB301C0 (448). I looked around for that error and found some things basically saying to use the Kaspersky removal tool and try again, which I'm going through now. In the meantime, Here's the relevant part of the log:
AV: Installing KAV client
UpdateAntivirusFolder: C:\Program Files (x86)\LANDesk\LDClient\temp_av does not exist, not copying C:\Program Files (x86)\LANDesk\LDClient\temp_av to C:\Program Files (x86)\LANDesk\LDClient
DeleteTempSetupFolder: C:\Program Files (x86)\LANDesk\LDClient\temp_av does not exist
Checking setup files
Last status: Done
Registering ldavhlpr.dll
Successfully registered C:\Program Files (x86)\LANDesk\LDClient\ldavhlpr.dll
Last status: Done
Removing old av...
Checking for other antivirus products
Checking for other antivirus products
ldavhlpr.dll initialized successfully
We can not verify the platform!
We can not verify the platform!
We can not verify the platform!
We can not verify the platform!
Mon, 23 Jun 2014 11:27:16 vulscan app path dir: C:\Program Files (x86)\LANDesk\LDClient\
Last status: Done
Installing LANDesk Antivirus client
ERROR: Installation failed. C:\Program Files (x86)\LANDesk\LDClient\antivirus\LDAV.exe /install (0x8DB301C0)
Last status: Failed: LANDesk Antivirus msi failed (0x8DB301C0)
AV: Failed to install Kav client.
In SendRequest: Action = SOAPAction: "http://tempuri.org/SetPatchInstallStatus2"
Mon, 23 Jun 2014 11:27:26 SendRequest: SOAPAction: "http://tempuri.org/SetPatchInstallStatus2"
Mon, 23 Jun 2014 11:27:27 Success
Last status: Failed
Mon, 23 Jun 2014 11:27:27 Exiting with return code 0x8db301c0 (448).