"I would like a Nichiren Gohonzon but I took a vow during Gojukai to always cherish 'this' Gohonzon when I received my Nichiren Shoshu Gohonzon"

 "Any vow taken while the party eliciting the vow is perpetuating a fraud is null." -- legal doctrine 

Your Nichiren Shoshu Gojukai vow is null and void. Do not be anxious.