I noticed that you had bid on a similar project to this so I thought I would message you about it.
I currently use WooCommerce to run an ecommerce website on WordPress.
I would like to have a shipping plugin that did the following:
IF customer in UK & Combined weight of items in cart <X calculate shipping price using UPS API then add that price to checkout.
How much more difficult would it be to also check the dimension of the largest item to make sure it wasn't too big?
Alternatively, I would like to use the [url removed, login to view] API to calculate shipping. I have never used this API before but I can give you access to it before you take on the job to see if you can use it.
I hope this makes sense.
Please let me know if you would require any further information.