Shipping options - if only envelope items or if mix of box and envelope items

Hello,

All of our items should have shipping rates by zones since cost of shipments from NL to other places differs with big changes.
The problem:
We have items that can go in an envelope, those have much lower rates (still should be set by zones and weight) but we also have items that must go in a box.
Shipment in a box is much more expensive so we want that even if just one item that must have a box is in the cart, only the box shipment option will show calculating by weight and the zone of the customer.

If only envelope items are in the cart, we want to only show the options for those.

A request that makes the problem even more complicated: we want to offer the envelope items 2 options, 1 with tracking number and another 1 without (significant price change).

I hope to find a module or a good idea from someone on how to do this.

Thanks!
Eran
b.t.w, ZC 1.3.9h

I have an Envelope module, which allows you to set for each product the number that will fit in to a envelope. If this number or the maximum weight is exceeded it will disappear from the shipping modules.

Thank you for your answer.
Is this module donated to the needy? :)

I would be happy to be able to offer shipping costs that are closer to the actual costs...
Also, is it possible to fix zone rates in this module? Because also in Envelope shipment from NL there are price changes between several zones and weights...

Thanks a lot!

It should be available through the Dutch zen cart forum, but I could wrap it up and upload it here in the downloads section.
The module can be set to one zone, but if you clone the module you can set the clone to use an other zone.

ps. if you pm me your email address, I can send you the files later this afternoon.

Just sent a PM.

Highly appreciated!