Going out on Norfolkline noon on the 16th, £39 return, back on the 16:01 on the 19th. Staying in a guesthouse in Adenau, £30 a night Inc brekkie.
The Ring really isn't anywhere near as dangerous or as daunting as it's described by the over dramatic, however it can be a bit intimidating. If you're the type to be intimidated, try and get out on a Wednesday or Thursday when far far less busy.
Cheers
lance