Any centerfire rifle will kill a treed lion. Most of the lions I have seen knocked out of trees were killed with a .22 rimfire pistol. A larger centerfire pistol would be much better. A pistol would be the best bet if a guy is even a half rate shot.
If I had to pick a rifle to pack on a lion hunt it would be durable,lightweight,and short. Something you won't cry over if it takes some abuse, because it will. If it were to have a scope, it would be low power and low profile type scope. Open sights would be fine if the guy doing the shooting can use them. Do some shooting at steep angles before going. So that shooting almost straight up is no surprise. A good shot, and quickly killed cat will make the houndsman happy.
Of the rifles you mentioned I'd be tempted to put a sling on that .30/30 and pack it. I've been with guys who packed compound bows and they are the absolute worst for carrying on a chase.