Looking for... Long picture frame mockup

Hi chaps, hope you’re well. I am going through the picture frame product mockups on GraphicRiver and there are lots of cool ones, but I need one that is a bit longer than usual and so far I am drawing a blank.
I’m trying to represent an image that is 700 * 250mm. Does anyone know of any that are similar dimensions (doesn’t need to be exact), or which resize to match the input image?
The setting and frame can be pretty generic - blank walls, bit of furniture are all good, and ideally the frame would be a simple black, white or natural wood, but if it’s one with fancy patterns it’s not the end of the world.

Does anyone know of anything like this? If it doesn’t exist then something that can cope with none standard sizes must be an opportunity for someone…

Thanks in advance,

Hi Steve,

I can make a custom mock-up for you if you’d like. E-mail me via the little e-mail form on my profile page, and I will reply to you with my notes. http://graphicriver.net/user/lifer