A lot of effort was put in the thread and this deserve praising.
Unfortunately I think that you are setting yourself for disappointment.
1- Oda loves the super sentai and found a way to give it to one of his main character. It is more realistic to think that Sanji will keep it especially after he said that Franky and Usopp will changed its design.
2- Haki seems to be the central power of One Piece. Therefore it is more realistic to think that Sanji would have a haki base power up imo.
Unfortunately I think that you are setting yourself for disappointment.
1- Oda loves the super sentai and found a way to give it to one of his main character. It is more realistic to think that Sanji will keep it especially after he said that Franky and Usopp will changed its design.
2- Haki seems to be the central power of One Piece. Therefore it is more realistic to think that Sanji would have a haki base power up imo.