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This article may set your mind at ease: https://moz.com/blog/301-redirection-rules-for-seo PR drop off no longer drops off circa 15%  as of early - mid 2016, which has been confirmed by some lovely Google folks (referenced in the above article). I think that you're only going to benefit (mainly in terms of management), ongoing.

Thank you so much! We're adjusting and taking everything in. We appreciate your help.

Thanks for the suggestion - we were leaning towards that so it helps!