A. Amy,
Prices can obviously vary dependent upon the moulding chosen, number and type of matting, etc. I priced out a four opening mat measuring approximately 20x25 inches finished size. With a moderately priced moulding, a single mat of conservation quality, conservation (UV filtering) glass, this came to $224. This price also included dry-mounting the four photos.
I would then give you a range of $180 to $240 to price this framing project. If you a local, please bring this in for some designs, or mail the photos and we can design this and mail you a .jpg image of what it would look like finished, with our Integrated Framer visualization software.
Regards,