I have certain items on my shop which require shipping on a pallet.

This creates all sorts of problems!!!!

I would like to do a pallet rate according to Postcode and on top of that I want to limit the amount of products they can order.

For example containers can be:

1L (no limit)
25L (limit of 24 x 25L)
205L (limit of 4 x 205L)

I figured I could maybe do some kind of mod listed here (http://www.zen-cart.com/forum/showthread.php?t=91394) with my ZONE RATES shipping module.

Any other ideas on how I can get round this problem?!

Thanks,

Tom