Is there a really simple shipping module out there to modify?

[kobra]

Ditto as to what picandnix stated

[astridah]

does the advanced shipper have something like this already?
I already have a few modules installed already, specified for my country and tweaked for my business. But I would like to try to make this one myself. But then I really need a small and simple module, with as little code as possible. So that I will know where to add my code and actually manage to make it work. So I was thinking the opposite of a "catch all" module.