Grover2000 wrote:just spins for 2-3 seconds and clunks then stops spinning.
[...]
what I can do to repair it.
Realistically, that behaviour means an internal drive fault in almost all cases, which a typical user won't have the equipment or experience to diagnose or fix successfully.

And if you try, your actions may result in the data being permanently unrecoverable, or at the very least, later professional recovery is likely to then be more expensive / less successful than if you hadn't tried.
There are other reputable DR companies in the UK (e.g. PC Image in Peterborough [member pcimage], East Anglian Data Recovery in Norwich [member Touchclarity]), for you to compare their prices & services with whatever quote you got from Seagate. You could also just store the drive while you save up or consider your options, rather than attempting to do something yourself (likely irreversible) in haste.
Even doing more diagnosis could make things worse if there is an internal failure, but if you want to try, then one action would be to use a TTL serial adapter (e.g. USB to TTL serial) and get the terminal output from the drive when it is powered-on. I suspect that will just confirm an internal head / pre-amp / media related problem anyway, but if you wanted to take the risks of doing some diagnosis, that is one thing you could try - though I don't recommend it.
Sorry that won't be what you want to hear. Perhaps my crystal ball is cloudy and another member will see a brighter future for DIY in your description...
P.S. This is nothing to do with forensics, so I've asked for this thread to be moved to the "Conventional hard drives" section of the forum - therefore don't be surprised if it
magically moves to there in a little while, but that shouldn't affect you replying or reading it.