Regarding which, the current status is that development has lain fairly idle for about six months now, after a drop-off in responses (note prior posting dates). However the prototypes are all still in qeue, with plans for each one's next developmental step(s), which I will resume as of today.
Meantime, Peter, your (roughly) 1-year's deadline for completion sounds like a very realistic fit - and in addition to the above, I can also offer you prototype "seconds", as they exist today, to the extent I can spare them and you can use them, right now - for which I may well take you up on your offer of some graphics, if feasible. I'll eMail you separately on that.
So, Welcome to ModelFleet, Peter - glad to have you aboard, and we're thrilled to have you join The Deal on the Group Build of Sydney(-II), buddy!