Odd job forge and fab

Hi, I have only had the fortune of using other persons 2x72 grinder. I am ready to pull the trigger on a obm dominator along with an articulating tool rest, the small wheel set, a 8" wheel and tooling arm to mount it. Is there any other thing attachment that would be useful out of the gate. I like making tomahawk and want to make larger knifes but honestly right now I don't make a lot of knives. Thanks for your time. I did a search but didn't see/locate any thread that covered this.