I'll try to think up some ideas for names. EDIT: Grinder? Surveyor?
I imagine designing a headbox would take some time, you guys have some wild designs.
It's nice to see a company doing something different, i.e. not vintage styled Marshally headboxes. Verellen too, but in a different way.
I am especially curious about the cab, however since you are going with a 70w head I would suggest a high-efficiency (Not necessarily big) cab to go with it.
Keep in mind speaker sizes don't have a "Sound", you can't say 15s sound like mud or 10s are faster or anything like that, I've noticed a lot of responses say certain speaker sizes have properties unique to that size but it just isn't so.
With that in mind, I encourage you to try some speaker configs you don't see too often