Advanced web form / paypal

Here's the setup:

I bought a vinyl cutter, I'm still working out the kinks but I figure instead of letting the machine sit dormant 90% of the time I could put it to work for others.

Here's what I'm looking for:

Select size - price changes based on that
Upload (.eps)
Color
Quantity - price is multiplied by this

And it needs to be tied in to paypal.

Like this, but with the image upload integrated.
http://www.standoutstickers.com/order_custom_stickers.php

Obviously there's a lot of details to be worked out, but this gives an idea of the scope.

If you could PM a rough quote I'd really appreciate it.

Thanks!

So you would be able to do any shape essentially? Do you have a website already or did you need that too? Did you have a design in mind?