Please can someone help me find a UK MOT legal pair of catalytic converters

[Georgekenny]

I’ve looked everywhere and I’m close to giving up, every website seems like they won’t pass an MOT and my only other option is a custom made pair and one of the places I messaged wants 2500 inc vat to make them and fit them which is outrageous in my opinion. Does anyone know where I can get some second hand or new that will actually have a real guarantee to pass the UK MOT emissions. 
 

thanks 

[Ekona]

https://www.ebay.co.uk/itm/145828574392?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=QgOzaqmhSF2&sssrc=4429486&ssuid=GvgeIZP3Tde&var=&widget_ver=artemis&media=COPY
 

Assuming DE, HR also available on there. 

[Keith D]

Fit a 300 cell HFC. Book an MOT while you wait. Drive the car for half an hour before the time slot so the cat is nice and hot. 

[ilogikal1]

Hve you tried @ZMANALEX?