If you intend to breed more Silkies, then you'll need the Silkie rooster
Something else to consider (if you're trying to figure out which to get rid of, if you're even considering that) is that there will be a significant size difference between your Silkie hens and the standard sized rooster. He could injure them while trying to mate or working out pecking order issues. If I had to choose (assuming you want to keep the Silkie hens), I'd keep the Silkie rooster, though I am a little partial to them.
My Silkies roost, if you can call it that. They use a large tree branch that's about a foot off the ground. They didn't always like to use it, so I'd sit them on it every night when I closed the coop. They eventually got the message and start hopping up there on their own. They used to have a coop with a ramp, actually ramps (it was 5 feet off the ground). They tried to make a huddle puddle in the run when they first moved into it, so again, I'd pick them up and place them in the coop. After a couple of weeks, they started using it on their own. If yours have large crests, that may be the reason they aren't able to use the ramp in the evening. Mine like to wait until the edge of dark to go to bed, and I'd imagine less light makes it difficult for crested birds to see. A hair cut may help them, though I suspect the newness of the ramp and your coop in general is why they're struggling.
I LOVE my Silkies, they're my favorite breed hands down. And, I think I enjoy my roosters more than my hens. They're funny funny little characters (I have 3 roosters in my Silkie coop- 2 Silkies and a Sizzle) and always greet me happily when I enter their run. Early, my black rooster, offers me the choice treats when I give them scraps, its hilarious. Mine don't charge me when my back is turned, in fact, my 8 year old daughter carries them around like they're her babies. They'll gather around our feet and wait to be picked up. She's even been caught with one of them in her room, having a tea party (though now, after cleaning up his mess, she understands why chickens can't come inside for a spot of tea).
They can sometimes be a little more difficult to acclimate to new surroundings than other breeds, but I don't really consider them special needs. I treat them the same as my other "normal" breeds, aside from the occasional crest trim every now and then.
Good luck with yours
