http://www.camskill.co.uk/m10b0s2604..._Gearbox_Parts
£259 for yours I think for a pink organic.
for clutch,.. I doubt anyone else will beat them for price.
or..
http://importcarparts.co.uk/parts.as...44&var=50&dc=y
these guys prices are excluding VAT.
these will be your cheapest places to buy.
The Pink will be good to the limit of the 5 speed box, although driven properly the standard clutch kits work fine. had a standard euro car parts clutch in my sti wagon running 330bhp and it never let go, (being launched at 5k didn't break it!)