Have you thought about a custom set up? either done at a
shop or done yourself? I worked out I could do one on my auq for around £200-£300, £500+ seems a bit excessive for an intercooler and 2 small bends.
Wellycooler, bar and plate, £70-£100, a few bits of pipe bends and joiners, say £100 for the lot, map sensor boss, £25, bov t piece around £15, self sealing take off port for the n75 is also around £15-£20.
Also that Airtec one is for a Cupra R, so it wont just bolt on the the LC, manifold is flipped as well as different boost pipes to the original coolers.