Reeflo Orca 250 Pros on here? Question...

[macawmagic]

I found one for sale online, but the pump seals are bad. The guy says he replaced them, but it's still bad. Can I take the needlewheel and put it in an already owned dart? It would be a little more flow for the skimmer, but it comes with the pro neck so it should be ok...correct?

I'm looking at a new Orca Gold pump and it's retail $599.

Any help is much appreciated!