fish and chip van?

Hi I have no idea what their service is like but food genie based in Evesham cater for weddings. Maybe worth a look? I also noticed your from Redditch, my home town. Are you getting married in Redditch? I hope the wedding plans are going well and good luck with the fish and chip search.

No help but love this idea x

No personal recommendations but google suggests these, from experience most event caters are prepared to travel fair distances depending on the size of the event.

http://www.hookedncooked.co.uk/index.php

http://fwcatering.co.uk

https://www.tomandsimonskitchen.co.uk/

https://kkcatering.co.uk/

I'd suggest KK catering as Funky said. They're all over the UK.
We've booked them for our "gormet burger and chips"

We did this for our evening reception and it went down a storm, not to mention the fact that everyone had a hot meal for less than most caterers were quoting for picky finger buffets. Ours are out of your area but I must give them a shout out as they were so good in terms of quality, service, professionalism and value: https://thefryingsquad.co.uk/

Plus if you're stuck, perhaps people outside of your area will travel for a fee? Ours were such good value that even if we had paid a bit extra to get them over to us it would still have been worth it.

Good luck and enjoy!