Corn......for the best results will need to be planted in rows. You can broadcast it, but planting density and planting depth can work against you much more easily by broadcasting. I know others do and have done it with some success, I have not.....broadcast it that is. I have an old school 2 row plate planter form the 60's that I got on the cheap. Row planting of corn ensures it gets the spacing needed to perform well.....and due to the expense of the seed and fertilizers I put as much in my favor as I can when it comes to dealing with corn......and you still have things that are beyond your control to cause issues as it is. Just my opinion here.....corn is one of the best late fall/winter foodplots you can have as it provides food and cover for animals......however it tends to come at a steep price and risk. Also keep in mind that MANY other critters live corn, turkey love to pull the just sprouted seed form the ground, squirrels, coons all love corns and can do plenty of damage themselves. if you have hogs or bears corn may pose problematic with them around as well.
I personally would NOT invest big $ into a row planter simply to plant corn. If I didn't have my planter I wouldn't be messing with planting corn myself.
Is there an option to have a local farmer plant your corn for you, or maybe reach out to other plotters in your area? Just some lower investment options for you maybe?