I remember recently reading/commenting on your query. From what you say this novel has been completely re-written, no? If it were me, and I had literally ripped up the old one and started afresh, I would press ahead. You’re not trying to market the old one, but an entirely new one.
You may have seen this during your search for definitive answers. If not, it might offer some reassurance.
https://janeyburton.com/republishing-previously-self-published-book/“Republishing a book is a business decision, there’s no romance about it.
You may need to take the book off the market before submitting to agents or publishers, and you
may need to rewrite it substantially. You will probably need to repackage the work to show it to its best advantage and explain its untapped market potential.”
So madame appears to be a publishing consultant who also offers mini consultations of 15 minutes by skype. I imagine the cost - which can’t be huge - would be worth the peace of mind (and no, I.m not related to her or pushing her site!!)

. Scroll down to end of her website for the details.