Not that I know of, but depending on your tank dimensions you might fine something on Amazon.
Or post where your located and maybe someone on here would be willing to build one for you.
There are a couple of us here who like to build DIY rock structures.
Look on Etsy. I found a guy in there doing custom faux rock backgrounds. He was in like Norway or something but ships to US. He will custom fit your viv if you send him dimensions. I think they were slightly cheaper than Universal rocks and of the same quality it appeared. Plus you could have input on placement of ledges and caves and stuff. I’ll try and find the link