I see where someone installed an electric fireplace for his RV can you buy it at LOWES OR Home Depot or do you get it from an RV dealer. The job you did looks great.
If your going to upgrade to a fireplace why not look into the newer infra red fireplace instead ?.We have a fireplace in our 08 Bighorn but I understand the newer infra red fireplaces are a lot more effecient.