Are they really more muck-resistant than geared setups (getting tired of chainsuck & shifting problems riding in Pennine muck)? Yup
How easy is getting the chainline sorted? What chainline adjustment?? On a ss specific frame it's reet
What sort of ratio would be good (bearing in mind I don't want to kill my knees)?
Is facial hair also a requirement for riding a bike with one gear? 32:16 is how most roll. Facial hair is not a requirement
Simples 😀