I, of course, make assorted sizes but generally I do not like to make larger than 770mm x 470mm. This sizing can be packed into specialty made boxes and posted through Aust Post, eliminating the need for a costly courier. You might like to consider two panels with the pattern flowing, if your required panel size is very large.
I can make a replica of most works you require but I do need around a week for finishing time. Pick up is always welcome. My work is very reasonably priced, please don't hesitate to contact me for a quote.