Have word with people you know who may recommend a elecy get him round give you a quote or phone a few and get about 3 quotes and go from there.
Let the sparks get the parts needed then it's down to them if anythings faulty.
Tradesmen don't useally like using parts supplied by the customer and we useally don't give a guarentee on parts supplied by customers.
Go to the electrics forum on here they have a few good sparks and maybe in your area.
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