Replacement pump/impeller for a DAS BX1

[BJCooper]

I have an older DAS BX1 in-sump skimmer that ate its impeller (wobbled it out). DAS is extremely difficult to deal with...so it sits gathering dust...I'd really like to put it back to work. Its a great skimmer.

Anyone have an idea what I might use as a replacement pump/impeller? The original pump (looks like a rebrand) was a moderate sized Eheim (probably in the 900 gph range).

Thanks