In the end, I took my chances and subscribed to the contest.
I'll see where this will lead me, here's my entry, named
Planes, Trains and Automobiles :
Video
EDIT : There's no link between my theme and the John Hugues movie, it's strictly songs and sequences evoking planes, trains and automobiles !
The maximum budget is 10,000 "points" (US dollars ?), and my display would cost 9995.60$ to shoot. This is as close as it gets to the maximum without going over, as the cheapest effect is 7$ or so !
I'm also clocking slightly over the minimum of 8 minutes, at 8:07.
I think it's the best compromise I could pull off to respect the budget and have a good amount of shells in the air at any moment.
There were no ground effects in the contest inventory, but I must say I would have liked to use them for some sequences (the smoke of the train, etc.)
I managed to fit two 8" shells in there, but other than that, the caliber distribution is about the same as one would see at the Fire on Ice, with 270 x 3", 106 x 4", 41 x 5" and 25 x 6".
We'll see... (if rules are meant to be bent, that is !)
STL