If you do not regard the liturgical practises of the Western (rc) Church(es) and their special teachings as binding and if you life within their canonical territorry, but do not submit to the latter (pope, local bishop), than it would be concludent to declare the Apostolic See as well as all other sees to be vacant, not?
If you regard them as not vacant, why are you not entering into their episcope or - if you are convinced that their orthodoxy is not given - declare them as vacant and build up orthodox local churches and elect a latter, which is in communion with the rest of the catholic-orthodox church?
Wouldn't that be a task for a panorthodox (general) synod?
If the Eastern Orthodox Church would consider what you are suggesting, it certainly couldn't be decided by any one individual or hierarch, other than the Holy Hierarchs of the Holy Orthodox Churches, because the Church of Rome would first have to be officially declared to be in heresy. I imagine an Extraordinary Synod of representatives of the Holy Orthodox Churches could be called by the Ecumenical Patriarch, rather than necessarily convening an Ecumenical Synod (Council).
What you are suggesting is not the least bit realistic at this time. There is a so called "Dialogue of Love," a formal dialogue between representatives of the Holy Orthodox Churches and the Church of Rome. The Church of Constantinople, the "First Throne" commemorated by the primates of the Holy Orthodox Churches, and the Church of Rome, exchange fraternal visits by sending delegations to each others sees on the occasion of their patronal feasts, in the case of Constantinople, at the Phanar, in the Patriarchal Church of St. George the Trophy Bearer, in the case of Rome, at the Vatican's St. Peter Basilica, on the Feast Day of St. Andrew the First Called Apostle for the Church of Constantinople, and on the Feast Day of Sts. Peter and Paul the Apostles, for the Church of Rome. The primates or first hierarchs of the Holy Orthodox Churches likewise visit Rome, and also, Popes have visited with the primates at their cathedrals; the Church of Russia has been engaged in dialogue with the Church of Rome in connection with the Pope's request to visit Russia. Not-with-standing the controversy surrounding it within the Orthodox Church, the "Anathema" against the Church of Rome, and the "Bull of Excommunication" against "Michael* and all who follow him," were lifted in 1966 (or so) during simultaneous ceremonies at the Phanar and at the Vatican.
The topic of "ecumenical relations" is on the agenda of the forthcoming Holy and Great Synod (Council) of the Orthodox Church. I can't recall if any of the Pre-Conciliar Commissions have published any of the pre-conciliar work on this topic as yet.
*The Ecumenical Patriarch in July, 1054.