Well here we are at number 8 where you seem to lose patience.
If I may summarise, you would be laying before the couple every possible reason whereby they could reject the ancient, consistent and current teaching of the Church.
My interpretation of Primacy of Conscience was taught to me in a Thomistic University. Where you and I differ is over what constitutes an 'informed conscience'.
Priests have consciences as well. Some are quite relaxed in conscience over permitting the divorced and remarried to receive the Sacraments, others feel, bound in conscience for the sake of their own immortal souls to refuse. This state of affairs reduces the Catholic Church to the level of a Protestant denomination. In my opinion the Pope has a duty to resolve this one way or another.
Anyway, thank you for your considerable input on this issue. We have both made our positions clear and it is unlikely that we are ever going to agree.
God bless.