Such an interpretation, would it be linguistically possible, woud remain unlikely in a saying introduced by apekrithè Thômas kai eipen autô, litt. "Thomas answered and said to him."
even if you are techincally correct, building a radical departing belief from traditional judahism on such statements to concoct a trinity theory seems more than a stretch.... I find it more than curious that not a single person in the entire bible bothers to TEACH a trinity doctrine to anyone else and yet so many feel it is a crucial doctrine and necessary for salvation.... seems to me Jesus, if he existed in the first place, would consign those anal enough to hate their brothers over such stupidity to gehenna (^_^)