Driving fence posts with a mini?

I am looking to expand my operation into contract fencing. I am wondering if anyone has seen a mini drive fence posts. I do not own the machine yet but I am looking at a ~8000 lb machine. Either using a plate compactor with a flange welded to the bottom or a breaker. The plate compactor is the preferred solution due to the fact that it is half the money of a similar sized breaker.

Does anyone have any thoughts on this, in my mind I would think it would work. But I can't find anyone who has ever done it. I kind of need to see it work before I open my check book.

Thanks,
Will