Okay I’ll be honest, this sounds like some ridiculous fantasy. You haven’ t been locked up ever and she wants to do a year. Yeah in your dreams… You’ve been reading too many captions.
What you SHOULD do is start out very slowly, try a cheap cage, for a few hours, then a day, see how it goes, build it up from there.
And get your head out of cloud cuckoo land and start being realistic about what a woman really might want and get out of it.
Hint: read this blog for lots of clues!