JCTewks,
Thanks for the info!
Do you have images of the moded OTP1000? I looked at the OTP3000 pics in Rich's gallery, he's a maniac!! That's pushing DIY to the limits!
As far as a pump that would be close to the OTP 1000, you could use the SP2 @ 350 gph. We don't currently offer a smaller pump.
-Jeff