the first kit you showed are about £130ish from ktec, so if you do buy it would be a good saving as long as the filter is in good condition.
i would have wanted one of them, but ive bought a second hand pipercross, and can always buy the relocation pipe seperate.
thats the problem with clios, because of the airbox you have to buy a specialist kit, ie pipercross or k&n, and not just a universal filter! (1.2 16v clios i mean!)
apparently pipercross are the best for sound, but if there is any power difference i havent noticed it!