Using lead sheeting for sound-insulation questions...

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I'm having a problem with sound traveling too freely between partitions in my home; specifically into my bedroom.
At this point, due to current living arrangements (long story...) I am not prepared at this time to rebuild any partitions so as to properly eliminate flanking paths, utilizing, for example, resilient channel or "staggered" studs, or any other such "standard" sound insulation measures. Instead I'm opting for a short term, if not somewhat bandaid, solution: applying lead sheets over the existing drywall.

However, having no experience utilizing lead sheeting for this (or any other) purpose, I'm wondering if anyone here can share any advice, tips, hints, experience or advice on this subject?

For example: I will of course not want to leave the lead sheeting exposed, but I'm not sure with what and how to best cover it so as to maximize its sound-deadening performance. For example, would it be okay to directly cover over it flush with another layer of drywall, or should there be an intermediate layer of something lightweight, like fiber board, etc?

Also, can I hang the lead sheeting using just drywall nails, etc, or should I use a special adhesive (or both)? [The lead sheet product I have in mind (Sheald™) weighs in at two pounds per square foot.]

Thank you in advance for any helpful replies,
Brad