My approach would've been to stick to the original plan with the TE2s and exercise some restraint about the MR CE release. After all if you were of a mindset intending to mod the TE2s in the first place (blasphemous as it may be to some people, what you do with your lids is entirely up to you) why spend more time and money on another variation? That is unless you enjoy the challenges modding involves. But since you went ahead and got the MRs, I believe buyer's remorse kicked in when comparing how more symmetric it was than TE2, and more suitable to your aesthetic comfort zone. In short, what I would've done if I was a symmetry junkie was mod one of the TE2s and keep the other as a display. Not even considering the MR CE means saving some time/money, keeping the TE2 for its pedigree and modding one to your heart's content.
My .02 but the ultimate decision is yours.