Thanks for all the suggestions, these are my thoughts regarding what I do (and what I realistically do not) want to accomplish:
- I want to be able to ascertain the parts I need to replace - some of the parts seem readily available, others (notably the anti-dive case) do not. This is so that in case I decide I can't fix it myself, it's a matter of getting someone to fix the bits I can't with the spares in hand, rather than leaving the bike with them for weeks waiting for parts to arrive.
- If I can do the easy (skill wise)/time consuming bits and have the motorcycle safely ridden to a mechanic to do things that are regular jobs for them but might be too complicated/risky for a first timer, that'd be perfect by me, so, eg, a full suspension service, if replacing the anti-dive doesn't need me to take off the fork/drain the right side which so far seems intact
- I am nervous about doing things that have potential for causing further damage, as I realistically lack the judgement to know how to minimize risk (eg something going wrong in the process of trying to remove that stripped stop ring)
- I do not realistically expect to be able to do the entire job myself
To answer some questions above:
I do have the Honda shop manual, that's what I was referring to, to determine how I remove the anti-dive assembly.
No oil leaks from any place other than the anti-dive case.
I have been able to confirm no cracks, chips or any noticeable damage to the rotor - just a superficial scuff mark where the bolt came off.
I have not removed the calipers yet to check for damage. From the sounds of it, that's the next thing I should attempt. Will check for stripped bolts first, and post photos from before/after.