There are two things you can do;
1. Get a pump simulator... I think RTR used to make one. It's essentially a bearing in an aluminum box that uses the same P/S brackets... which will allow you to use the same belt, and tensioner... or...
2. You can get a different belt and yam that bish on. There are thread on this and the old forum about which specific belt you need to purchase if you go that route.
The other alternative is to fix your power steering, lazy!

jk jk