Great Paul!
as for your request, Calimbo, be patient: it isn't on Paul to do the tracks compatible for GP3 1.13: he is yet struggling enough to convert them for GP3 2000. We are reasoning with Renè to increase the track size limit also for v 1.13, though it is long time that I don't receive fresh news from him. Try to ask SDI about this issue in his forum.
In the negative, with his permission, I will try to reduce Paul's track size by removing some graphical detail, but it is a pity because they are so nice, and I can't be sure that the changes will be effective also for the Melbourne track.
Cheers,