In your case I'd start with a new one (x ring?).
Go for a couple of short rides to wear off factory oil/grease.
1) Adjust to specification.
2) Lube chain via inside links with o-ring compatible oil (no fling is what I prefer...don't much like something that can get on my wheel/tire especially if riding on pavement). Don't like the wax types either due to the residue they leave. Motul is what I have been using.
3) Wipe excess off to clean exterior of chain so that dirt does not accumulate on links.
Go on your ride and repeat steps 1-3 as necessary. Take along rivet chain breaker and extra master link/clip. Don't forget to take a can of chain lube with you.
Sounds like an exciting ride!