You're going to get at least that, likely more than 20 cents for...

You're going to get at least that, likely more than 20 cents for them if you keep them. Just value them at that in your divorce settlement and move on.

Any divorce lawyer on her side is going to carve up a 6 cent valuation and it will just cost you more in legal fees to fight a losing fight IMO.
You could value them at the LLL shareprice at the time plus cash backing I guess and get a valuer to sign-off on that if you really want to fight every inch. Complicated though.