Looking for an insert for an arched fireplace

[Reason]

Greetings. My first post here.

I'm looking for an insert that will preserve the arched brick opening in my fireplace. See attached photo. Height is 28" at each end arching to 31" in the middle. Front width is 34.75, Depth is 18.

The room is 300 sq. ft. with about 1000 on the first floor of a 2-story home.

I realize I may have to install a base unit and then custom cut some metal to fill the opening and the arch at the top. Has anyone done something similar or have any suggestions?

 

[DAKSY]

I have done this with the Regency inserts. The surround panels are cuttable with a jigsaw & a fine-tooth blade.
I first made a cardboard template the make sure I had the correct fit, then transferred the layout to the Regency surround.
I cut a TAD oversize & ground it back to the layout. It worked well & looked good after I touched up the painted surfaces...
HTH.