Fuelling probs???

These

 Ebay Item number: 251003317641

yup those are the late clocks, so you need a mk1/cab dash loom plus switches

So all I need is mk1/cab dash and rear loom from a later car with bladed box??

Is that right??

And from any any engine size??

you need mk1 or cab gti for the rear & engine loom. then any mk1 golf or cab for the lighting & dash loom, unless you want the mfa to work then you want a mk1 or cab gti lighting & dash loom

Thanks very much for the help