Calculus 3 - Need A Source

[dharmastudios]

So I need Calc 3 for my BA in Math via TESU. I submitted Westcott/Brandman - and they wont take it as calc 3. The eval for it came back as it being equivalent to calc 1, which seems really baloney to me, but hey.

So, I'm doing Coopersmith's linear algebra now, will be doing Calc 2 with Straighterline probably in a couple of weeks, and then I need Calc 3 from somewhere. UND has it for roughly $1400 which isn't any cheaper than doing it right through TESU. 

Does anyone have anything that'd help here? Should I just bite the bullet and do it through TESU?