I think these Orpingtons are not a year old yet, at least the rooster doesn't have a spur grown on him yet. How long does that take?
I think you’re right, they are beautiful young looking birds! I have found my boys start getting spurs around one year of age, but have noticed that it also seems to vary by breed. Mr Maran it Two now and has 3” long spurs! They curve a little, Chickie Hawk (EE) had (until he knocked them off) about 1 1/2” very curved spurs Sammy has about 2-2 1/2” spurs that are almost straight.
It is hard to say how He will react to being handled, that they are so forward with you is a promising sign in my opinion. I would expect the worst though, so go in and be resolved, wear long sleeves, and don’t be surprised if he bites your arm. Chickie Hawk always gets at least two or three good solid bites on me, no matter how carefully I try to avoid them (but he is a “special” boy that most reasonable people would have sent to freezer camp!) I wouldn’t try any towel type maneuvers, as they reduce your grip. Once you’re holding him he may try to thrash with his legs. You’re right he’s going to be stronger than you’re used to. I’m right handed and usually tuck them football style under my left arm, forward facing, while using my right hand to hold the feet. Once you get them tucked up tight but gently, it’s no problem and they settle right down. When Mr Maran was being standoffish and started getting a little aggressive with me in the mornings, I would actually hold him like that while I did all my feeding and releasing chores. He would come at me, I would scoop him up then go about my business. Practice the hold with your girls a bit.
Depending on the flock behavior, what I usually do when moving mine, especially if it means moving them out of sight of the flock, is to take several hens first then the rooster, then finish moving the hens. I have found some guys will panic if they are moved first, set up an alarm call and can spook the rest of them. But I work with my flocks, and these chickens are closer to becoming feral. If you can move hens in twos, with a friend or if you can secure two together (only if you’re 100% sure of your hold, and won’t be worried about dropping them!) I find they stay a little calmer, but I am moving from a pen or run usually, and don’t need to worry about “escaping” chickens.
Also, if you have a red headlamp, for night-time wrangling that works best for keeping them quiet and undisturbed I find.