the problem is I have no way of knowing how much shipping will be because it's not standardized by my distributor and eventually I'll be working with other distributors whom may do it differently.

it would be easier if I get the order with zip code & cc info from zen cart and then call my distributor to get the actual shipping they are going to charge me and add that to my customers order then capture

let me know your thoughts...I'm desperately trying to find a solution and I just don't think any sort of shipping calculation in zen car is going to work for me