I have had a Hayward for years. I have a pebble-tex finish that eats the "shoes". Replace every year for about $10. Forget to do the annual maintenance and it starts eating the wings and body... much more expensive ;-)
I think you can buy new for ~$299.
It doesn't use a separate pump... it runs on suction, switched in by Jandy valves. For you to change may present a plumbing issue.
...Jim Thompson