Dadant has several conversion kits ready made for many of thier extractors. If you happen to know a model name or number call your local Dadant office.
Thanks, a little further looking and I found that I have a Walter b Kelly and they sell a conversion kit to go to a 9 frame radial. I also see that going to radial requires alot more turning and thus will likely need to swith to powered. I think I will get through this year, see how it goes and consider a upgrade if I get more hives going.