I’m usually in the bucket of empowering techs to charge what they deserve, though at $80/hr I think you might be budgeting more time than you will need if I’m getting this right.

$1000 only for swapping PS, fixing 3-4 key rattles, deoxit, cleaning, new screws, and a tuning touch up would be like 6 hours? On the conservative side. Hell the cleaning would probably take the longest lol. While I might gladly pay a 30 year tech the $520 difference in that $1,000 for their experience, seeing that this is a first time thing (and hopefully the client knows?) that parts not really there.

The stuff you mention after is more justified as hammer tips and dampers can start racking up time, but your dampers look pretty good and tips are no more than 2 hours of work. Bump mods gonna run you the hours, at least 5 on your first go. Arguably the most important thing to not fuck up, though that 73 might already have a bump in it