Well there are lots of options
Bear in mind anything that's 80lpm+ is likely to be closed impeller so will need cleaning from time to time (unlike the TAM, it won't just munch any bits of chips - they'll jam in it instead).
Depends how patient you are and what turns up on eBay really.
And the rest of the pumpophiles always have an eye out for a bargain for themselves (lots of lovingly crafted automatic eBay searches I suspect!)
I've renamed the thread so it makes a bit more sense...