This is about the WW2 version but it will differ to the original by the wheels only I guess: http://pub19.bravenet.com/forum/static/show.php?usernum=1619281253&frmid=6&msgid=885403&cmd=show
Hmm, if they're remaking it in hard plastic, they may be selling it without the crew as per their ww1 guns. If so, maybe they'll include wheels for the WW1 version too?
Good news that Hät has taken note of the equipment parts of their sets not being too good in the soft plastic. Good for them.
I've always found HaT to be very open to comments, criticism, and suggestions. Unlike say, Emhar, Zvesda, Imex, Revell, Airfix, Pegasus, Dragon, Bill Brewer, Jan Stewer, Peter Gurney, Peter Davy, Dan'l Whiddon, Harry Hawke, Tam Pierce, and Uncle Tom Cobley and all.