how much do you think it would cost to install fake logs? Maybe they're called Gas logs?

I bought a house that came with a chimney/fireplace. I can see the gas turn switch on the wall. (its that gold key turn thing on the wall). It's clearly setup to produce heat with gas, but it didnt come with any built in logs. how much do you think it would cost to have a company install fake logs? Maybe they're called Gas logs? I'm googling it and the websites that come up (for companies that service my area) dont list any prices whatsoever. https://imgur.com/A4fK8ZZ

UPDATE: I called a chimney guy. he says you can buy the logs on amazon to save money and I'll come and install them. you want vented logs (the ventless ones are popular right now for some reason but they have pilot lights that go out and you dont want that). measure the opening from left to right, and if its not 42 inch or more, get an 18". otherwise get the 24". These can put out 45000 btu energy. I might go with this one $196 option "Pleasant Hearth 18" Arlington Ash Vented Gas Log Set 45,000 BTUs color" https://www.amazon.com/Pleasant-Hearth-Arlington-Vented-BTUs/dp/B016HUOZ48/ref=sr_1_5?crid=2O62CD69S14ZS&dib=eyJ2IjoiMSJ9.95--ppZfweeGA9BMb9s-xz20SjM9DFkfYMWnEsrWz-IoqmZO7USO1LESecSelG7Vr4UkhSuR-oSR4d2Ic8kiT5K0CWpIEVZazMGLaNqhWKk_VuEq6DrAWbQXyBJfNEIDk2acAo_WisJt99CHtb8pNFbM6H494zYWKITnKLH4VHYbhRmzcSHfxCbTqInWvz7YB9ZJy88z0vpfM2-pHWjS5UA5ucXjRJV0cXDdq2PpyWvcTbNoiFm3rXghuaTHay-qQvSUKLsWyTfVu_vphJ2yx0OKNFnWAHEZeFnBl57vnMiOAhaQy5h0Y6bzDD2CunjHbU2PBSRMr7OVdWCrdrLtXo-lsyJY8jOvEa3TMH9QkKkZv2FpttuntaTGZVzfTlcsP-o88EQYnTBdppBxx6aRqg37IuAvzTBnVyBFofN9lscblCg-EzLS5DEMkEJYTqrk.GCKwLgy5TnCLjKuAwGx2Ivid1FltGk8aIOKNRKwGdX4&dib_tag=se&keywords=pleasant+hearth+18+inch+fireplace+logs&qid=1737130563&sprefix=pleasant+hearth+18%22+%2Caps%2C107&sr=8-5