Due to lack of use and being kept on the road my front offside caliper is sticking on. Took car to local garage today....their diagnosis is its seized solid...needs "breaking off" and new one installed. Their price is £220 just for one caliper ....on ebay you can buy a new one for £40. So is a cheap one any good or is there a recommended replacement...or buy a used genuine and refurb with seals? Do both front at same time or just the faulty one? All recommendations welcomed. Happy Easter. 