when i had t/t cars the intercooler always resembled the rs500 type-tbh any cossie one would suffice-but the bigger the better
the pipework will be hard to source unless somebody breaking exact car-then usually sold as a kit-sometimes with engine so you will probably have to adapt/fabricate this-shouldnt be too expensive if you ask about locally-even if you bend and cut your own pipes to shape and get somebody to weld a shoulder around it this does nicely