A local church or catholic school may have chairs for loan in exchange for a good donation. Senior centers may have some on loan. Fire departments also have these on hand but would expect a donation. Let a friend give you the wedding gift of returning them for you!
Rental agencys are the best but can be pricey. Perhaps your caterer or florist can combine with you.
Could you put this on a "wish list" so that a friend or relative could give you this as a gift?
Friend gave me photography, a relative did my flowers, it really helped.
