Looking for an older, well broke team

I know it’s kind of a long shot looking for a team like this. I’d like some very steady. trustworthy, safe horses, maybe 12 years old or so. Suffolks would be my first choice, though I’d consider any breed as long as they’re not too tall. Basically the kind of team nobody would want to sell. It can’t hurt to ask. I would also consider a single horse. I’m located in southern Michigan. Bob