If the end goal is to buy the parts, are you aware of Brickforge
I believe it does what you want, and it can even generate XML that can be bulk-uploaded directly to bricklink to make it easier to buy exactly the parts you need.
I'm not proposing this as the Peeron solution, but rather a solution for Derek.
I believe it does what you want, and it can even generate XML that can be bulk-uploaded directly to bricklink to make it easier to buy exactly the parts you need.
I'm not proposing this as the Peeron solution, but rather a solution for Derek.