I've now succesfully created a slider for the width of a decal (and then outputted a height for the customer to see) I've also now built a colour/texture/vinyl type menu which I'm quite happy with!

Just need to tidy up the code and get it to play nice with the dynamic price updater mod and then it should be ready to go online.

As soon as I've done that I'll update this thread with the code!

Thanks Nick, I definitely needed your guidance to set me off in the right direction!