thanks for your interest in my variant. I wish I could point you to an available opening, but the current 1648 game being played here (a tournament finals) is already long underway.
I suppose that game was still being advertised here somewhere? Looks like our admin removed it, yes?
Anyway, if you want to be alerted to future 1648 , drop me a mail so I can add you to my list of potential players (cfeaux at gmail point com).