Turned out to not be so bad getting into the HV cage.
The black coating on the flyback is cracked and crumbling. There are several chunks of the coating missing from the bottom:
Would black RTV be OK to re-coat the flyback? Also found two resistors --- one of them under the horizontal rectifier socket as Phil predicted. The other can be seen in the picture above. I will replace them while in here. I don't really see anything else in here, except some dirt and dust that will clean up.
Also, I want to replace or repair the HV lead that runs to the picture tube. There is a previous "fix" to the insulation with some electric tape. I'm sure this tape isn't rated for high voltages... Any suggestions here?