From what I can gather the normal route is, meg engine, meg box, meg engine bay loom, meg ecu, meg driveshafts, meg auxiliaries, meg turbo.
Custom decat/or joining pipe from cat.
Custom boost pipes, Ktr do a set I think.
A custom smaller Intercooler.
Meg ecu can be made to work with clio uch but I don't know how people are doing this. Some sort of software flash I imagine.
if you provide the parts Ktr will fit for you if you don't fancy taking it on.
Best bet is to keep your eye on eBay, gum tree etc for a rear end shanted 225 and use that as a donner.