Welcome and there is a thread devoted to information about all the dealers. Some are less expensive and some are more. In my opinion it's pretty much a crap shoot since everyone seems to have issues with starting them the first time. After that it just depends on how good a job you did mounting them. There are threads here that cover most everything.
Again welcome and have fun that's really what it's all about.
__________________ My posts have entertainment value only. A bike ain't yours till it has your blood on it. Then it owns you.