Thing I'm thinking about Take Courage ... already have house-ruled this, partly. Why should it only be Rhyming that can give the group a benefit? Why not also Cooking, or Music? And for the individual, perhaps Carousing could be restorative.
Also thinking that in the Wild you would get the partial benefit as in the rules, whereas in a Haven you would get the full benefit but still would need to make a roll. This would make the game a bit more stressful than the original books.
All in service of a post-war campaign I'm starting, called Shadows and Ash. It's set in the lands of the old Barbarian Prince game, after prince Cal Arath has won back his throne and started a widespread war in the process.