The washer trick is good. I never did it, but then I got the Recaros, so...
Clioturbo is DTM right? Supposed to be good, will also do you a full low boost turbo set up for 3k
£475 seems very good. When I bought mine I had it done for £635, that was all belts, dephaser, water pump, etc. That was Rentech in Portsmouth.
My next task is sort the leaking VVT solenoid seal. Easy enough, I just CBA.