I have listened carefully to all this gear, but none of it together.
Here are my impressions.
The Creek is a neutral to dry sounding SS amp. It does what you ask without fuss and has a surprising amount of power.
The RS6 is a very nice speaker for the money, no question about it, and can sound very good driven by even modest electronics. But it is NOT overly warm - more exciting.
I was frankly surprised when I read that RR loved the Creek/Monitor Audio combination. Dryish amp with mid-fi metal tweeter? I can't question what he likes, but I think RR has a love thing going with Creek gear.
The 805s are very, very detailed. Beautiful looking and sounding when properly driven and sourced. A classic. They can also push the resolution of your gear upstream. For example, I have heard them sound very unflattering when driven by an Arcam Solo, where the B&W 705s sounded great with the same. Sometimes too much information is not a good thing.
With that said, the Creek should have plenty of zip and finesse to run the 805s and the Marantz CD should round things out nicely. I would go with the 805s because they will sound very good now, and give you even more enjoyment if you decide to upgrade your electronics at a later date.
Try the Home Depot wire for starters - but I would lean away from silver wires with this set up.