You will need to lengthen both intercooler hoses and the top rad hose, bottom will be ok. The oil cooler pipes can be extended at a hydraulic supplier, cost me £75. Power steering pipes will fit. Suggest you get an electric fan as viscous won’t work. Mounting on revotec is good, better than kenlow when I bought mine.
if it’s a disco engine the air inlet pipe runs up the passenger side of bay, when defender goes behind engine. It won’t go behind engine now as it sits so close to the bulkhead, so I just stuck a conical filter on the end of the disco intake hose