Hi Anthony - and welcome aboard! You'll find this forum very useful for all the little queries that need answering!
Yes, the grandly named 'keel indicator marker' is simply a cord attached to the wire strop at the top of the keel which is then attached to a bungee up to the spreaders. That's it!
I initially put 3 knots in mine to indicate keel third up, half up etc but actually did away with it completely and now have a short cord just to the mast foot to prevent the wire strop jamming down the keel side when raising it (which I rarely do).
The keel retaining pin is a short alloy tube about 8" long x 1/2" diameter on a piece of cord (to stop it falling overboard) which slips through the wire eye when the keel is up and rests on the deck to support the keel. There should be two little shock cord 'hoops' each side of the keel slot through which this passes.
Easier to show than to describe so if none of this makes sense I'll take a photo when next on boat!
Stephen Godber
235/51 "Exodus"
Stephen Godber
235/51 "Exodus"