You can find the little round dowels or what ever they are at a Lowes for the turn signal cancel or you could probably contact Grant Wheels and say you lost yours and need new ones.
I picked up a nice Grant GT classic wheel from a member on the board here. I looked up the part number for the install kit in the search function. The only issue I had was I was in a hurry to install and the first time, hooked up the horn wire to the wrong connector on the horn button. When I put it on the horn would go and I didn't check to see if it would go off when I pressed the button. SO 20 minutes later, after going through my horn wires under the hood, I realized I should have hooked the wires up to the middle tap on the button. Works great. The wheel is about 1.5"s smaller than stock, but it sits higher and closer to me and gave me a few more inches leg room. Just perfect for driving with my knee so I can eat on the road