“I purchased these to fix but was unsuccessful.”

Well, that’s a promising start.

“So I am getting rid of them whilst clearing out my garage to make some space and generate some funds for planning an upcoming holiday.”

What a top-hole idea! I think, instead of spending nigh-on £200 on someone else’s rubbish, I too will put that money aside for a holiday or a similar treat!

“Some have broken parts or just simply not working.”

‘Simply’ not working. As in, broken; but in such a way that you cannot tell how, let alone fix.

“I imagine they can be repaired by some competent person or cannibalised for spares.”

And here comes the flattery. Seller admits they’re an idiot, but avoids accusing potential marks of the same by inferring they’re much smarter than the seller and they’ll easily make their money back.
Meanwhile, said seller will be sunning themselves on the beach (If they’ve resisted the urge to buy further get-poor-quick broken tat). Let’s also not forget that they’re likely to be in worse condition now than when they first bought them, having been tinkered about with by a person who has effectively admitted they are incompetent and wants your money in order to leave the country.

“I will also include spare end caps and original GHD plugs if I can find them.”
I.e. if they can be bothered.
May as well try and sell them as the ideal joke gift for a bald man.
(or for a man who’d like to be bald. Possibly with third degree scalp burns thrown in for good measure)

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