It would cost an extreme amount. The only reason to do something like that would be to defer capital gains into retirement while protecting your position.

You can use a collar for this at somewhat reasonable cost. Not sure how rolling that would compare to just using it to defer until you can cheaply sell and buy some fixed income ladder. Probably badly.

Also, there’s no capital gains to defer if you use a retirement account, which will be a better place for fixed income anyway.