I am looking for a cheap cart, gig or sulky that seats at least two people or can be modified to seat more people. I is for my 158cm (15.2hh approx) standardbred mare. I am on a tight budget so it needs to be cheap, preferably under $100 although I will look into any cart. I am also interested in a hack sized harness so if you see any of these, please let me know. Thanks. :-)