I got mine from a butcher I do a little swapin' with.
You can get a pretty good one from Bass Pro Shops. com. I think they were 3 different ones listed. The min. electric was about $125 maybe I'm not sure. It pushed about 2 lbs a min. I would suggest you look for the higher end AMP's and process at least 3 - 5 lbs min. You'll know you've got the power you need, yes more POWER!