ChickenOBoy the run sizes sound right for big chickens but maybe the run can be a tad bit smaller since they are silkies/banties? I have limited experience with bantams but my silkies are fine with a slightly smaller space.
I think your idea of a movable pen sounds great, depending on your predator situation (especially dogs, foxes that can lift the pen up). As far as carrying them, you can always do that but it is far easier to tempt them with food. Here's a trick - you can either restrict their feed in the early AM and then midmorning use their feed to lure them into the moveable run, OR you can leave their feed in the early AM and use tasty snacks (leftovers, veggie scraps, lettuce, a little scratch) to lure them into the moveable run. You can also gently herd them into areas, I hold a few long pieces of bamboo to herd them where I need them to go. But it's a lot easier with food because they don't always cooperate.
In my experience once they've had their fill of any particular food - feed, scratch, lettuce, etc. - then they will no longer be lured by it, it has to be something they haven't had a lot of for several hours.
If you don't manually move them, it is still a good idea to pick them up every day or every few days for a quick phyiscal exam - chickens can get sick / lose weight / get infested with mice or lice quickly so the faster you diagnose a problem the better.