Hi! We have an enormous wall fireplace with a raised hearth. The total length is 13 feet -- we loose SO much floor space! This is vintage 1960's - 1970's & I absolutely hate it! What I want to do is make it smaller -- take it down to about 74 inches total - that gives 12 inches on each side of the fireplace door. I really don't mind the color & really like having the raised hearth. Is there a way my husband & I can do this (if so please let me know the process) or do we have to hire someone to do it? Here's the picture of the fireplace. Thanks for all your suggestions & help! K.