Chris,
I have seen the chain operated kind before but was hessitant about how accurate of a cut they will produce. All of the ones I use are the half saddle type. I would be interested in the chain type though being that I am going to have to cut a wide range of different diamiters for this job. Cant seem to find either that are not junk other that brand new. Let me know if you come across something.Im about a week or two out before this project fires up so I have some time to look for another machine.
Thanks,
Corey