Hire a good experienced mulching contractor, renting something u never ran before may cost u more money in the long run. Lot of tricks an experienced operator knows, for example wat will u do when u jam the head with debris, it will happen slot when you'll learning how to operate a mulcher. Any experienced operator can have the jam out in no time be inexperienced operator may have a time. Just to name one thing serval serval other things to name off I would think about renting vs hiring someone to do it.
Just my 2 cents