Replacement OmniStep

Hello everyone, I hope you're all well.
I managed to bash my Omnistep on a raised kerb and it now needs replacing. The current one measures 47cm width but the only one I can find online is 55cm, does anyone know if this would fit with newly drilled holes of course. I have had a look at posts about steps but haven't found anything close to what I need.
Thanks in advance, Anna 

Any good?  https://magnummotorhomes.co.uk/shop/steps/12v-electric-steps/thule-omni-step-swing-down-12v-460/

Lots on Google. [You must be registered and logged in to see this link.]

Thanks Peter, I hadn't seen those. It's frustrating that they're all much more expensive than the 550. Do you, or anyone else know if I could have the 550 version fitted instead of the 460?
Anna

Is your step not electric? The much cheaper 550 is manual. Don't know if it can easily be fitted as an alternative.

Hi Peter, No it has to be manually pulled down and up with a foot, it's on a really strong spring. It does have an alarm so I don't drive away whilst it's still out thought which I have done on a couple of occasions! 
Thanks, your help is appreciated. Anna