> How long do you get to reply/order, when contacted?

This isn't written in stone, and I think it's in everyone's interest if we leave it that way. If you get back from holiday two weeks after we contacted you, then of course you can place your order then - but if we ran out of stock from that batch then you'll have to wait for the next.

The plan with the Mk.2 is to avoid that running out of stock part, though!

Rob