I would never knowingly buy, anything, from a dodgy place or suppler, like I generally do not pay cash for work done on the house etcetc.
However I note the points made but the e bay seller has almost 8000 sales and if you look at the picture background it appears to be a ' proper' vehicle recycler and the part will be issued with a VAT invoice
most my doings are cash.
it doesn't mean I'm a bad person, nor does it mean the persons I'm dealing with are bad people.
my plumber will charge me cost for all my work
my electrician is the same
my builder is the same
I'm their mechanic, I'm the same
yet my 3 friends all own successful business and i have a hard working job also.
we aren't tax avoiding, we haven't stolen our parts, we don't pay for each others time. now if i said to one of them, do a job for a friend of mine, and they didn't want to pay cash and they wanted an invoice, they'd get charged full price.
invoices are copied
paper work is checked
finances are balanced
and it then get declared as work...when you should have just paid a tenner for the part and made a brew for their time.
work aside, i am also a thief, i steal motorbikes and sell meth amphetamines cut with god only knows...