Uh-oh, looks like I started something.. .
1st - Definitely no blame or ill-will should be directed toward the BP team, as they certainly have to take care of themselves before they can worry about a hobby/project like this. As much as we all love BP and are itching to see the end, they have a duty to themselves and their families that far outweighs any obligation to the fans (not that there really is any, though I'm sure we'd all appreciate it) to complete the series.
2nd - My original statement about being able to pay them to finish it was based on the "Money Is No Object" theory, in which any additional staff (like accountants, business managers, etc.) could be hired at a real-world salary to ensure the completion of all planned work, including monetary compensation for anyone and everyone who could lay claim to a piece of the pie, etc. etc.
Unfortunately, I don't think any of us, even collectively, could pool enough money (easily $1m+ depending on projected timelines) to actually make such a thing possible... but it's fun to dream.