Makes sense. I think going TLJ will be excellent. I also recommend now that we have L2/L3 for these costumes, that you go L3 from the start. It will be far easier to do it the first time around. Also, if people feel a little flush, you can get some extra bells, yoke, and helmet and have do the TLJ-Executioner in the future, which is a nice plus.
Note that the TLJ Phasma is WIP but should wrap up in January when we get more photos. Right now I've gotten no pushback on the text, but with the holidays and whatnot. In any event, the CRL will be done by the time you order.