Assuming you are serious then taking ECP to court and advising, for example, that they have been *negligible* and not *negligent* suggests you would do rather well to drop this now.
I know people hate others picking up on typos (particularly on here) but in this scenario it is of special relevance.
So Mrs Cuddy (Mills whatever) what part do you feel ECP played?
Oh, its very clear - their part was negligible.
So what the *** are you doing bringing it to court?
You are in all likelihood going to lose; they will argue *negligent* fitting, not their problem once it had left their hands, no proof the part was faulty etc.
You have less legs to stand on than the other Ms Mills and you will end up paying for their nice expensive barristers.
This case will bankrupt you - sorry to be blunt but you will be torn to shreds and then some. They may even threaten a libel case against you for the adverse publicity.
The best thing the judge can do for you is kick the whole thing out at the directions hearing.
If the part was faulty, yes it is concerning and I appreciate why you are taking a stand. If you are trolling fine but taking you at your word I can only say drop it now before you end up with nothing...
EDIT: INAL and you should speak to one ASAP. Do you have legal cover as part of your home contents insurance or motor insurance? Use it - but I would imagine they will invoke the 'prospects of success' clause.