Well, at this stage I'm just trying to gauge the level of interest in doing a GB.
My own personal preference would be for as original Macross as possible because allowing alternate schemes would open it up to the Battletech/Mechwarrior adaptations.
It would make little sense calling it a "Macross" GB if everyone wanted to do alternates and BT/MW stuff. Having said that, there's a number of the Hasegawa Valk kits with non-original "Macross Inspired/tribute" markings.
I am something of a Macross purist though and it's just my own personal preference - anyone else have any thoughts on this?