The best we know is the best we've used, i've only had my one stove so any opinion i offer is really doing you a dis-service.
What i will still suggest is multi fuel and pipe capable of corrosive gasses. Also by multi fuel i mean more than corn and wood pellets.
I've burned very little corn, 2 or 3 bags total, last few years it wasn't worth it, corn was to expensive. i mixed it about 50% and really didn't see any difference in the burn. There are individuals here that have burned corn for many years and they've posted a great deal of info in the process, something to read up on after you get settled with whatever you decide on.
I don't believe the agitator eliminates the clinker, justs keps it to a smaller size. I had a 1/2 ton of pellets a few years back that made golf ball sized clinkers, using the agitator/stirrer kept the clinkers broken up and just made for gritty ash.
No dis-service at all, johninwi. I will take all of the input I can get from anyone about any stove or unit. It helps in my decision process. It is my understanding corn has come down somewhat but I believe it is still high dollar comparatively speaking I was told?? One guy told me he got a batch of corn with bugs in it and had the things all over his business for months. Had a terrible time trying to get rid of them. Said they kept hatching out of a pile he had delivered and that he would never mess with corn again .LOL! I have a barn to keep stuff in so.... not a deal breaker other than cost. I could get some sealable containers to stock in the garages and rotate it in. I usually accumulate 5 gallon buckets from my line of work anyway. Thanks for the pipe recommendation. Probably a little more money too.