This is a 7200.12 drive. This series of drive usually starts out with a few bad sectors, a firmware issue, followed by a single head crash to a completely fatal head crash, very quickly. So, definitely do not power on the clicking drive any more. Even the "good" drive may not be in the greatest condition and should be only powered on to get a full sector-by-sector clone.
Single surface crash -
https://photos.app.goo.gl/NJ3kHmadkUfFcmmo8
Full fatal crash -
https://photos.app.goo.gl/z3R5bXkq26Mhpku26
Assuming that this is a RAID 0 (stripe), we definitely need both drives to have any chance to recover the targeted file. If the one drive suffered a fatal head crash, it is game over. However, if it has a single head crash, we have ways of cutting off the one head and reading the other surfaces (if things aren't too bad). With the partial clone, we may have enough to reconstruct the file tree, find the target file and recover it, providing that the file records and contents don't land on the one damaged surface. So, a lot of skill and luck needed for such a case to be successful.
I second the recommendation for Jared from Data Medics, if you want to keep it in the US.
That all said, such cases are low odds and very time consuming (assuming the single head crash situation). Most labs will just immediately call it unrecoverable if they find a dirty head, suggesting a head crash.
Of course, there are cases where we get a clicking drive in, make a few tweaks to the firmware and are able to clone most of the drive without a head change.
Just for reference, our base price for a two drive RAID is $900 CAD, before discount. So, in this case, your minimum discounted price with us would be about $550 USD. But, I suspect that it would be at least double that, if the internal damage is what I usually see with this model of drive.
Hi
(2) Seagate Barracuda 750GB
The clicking drive details:
Serial Number: 9VPEQ47#
ST3750528AS
Product Number: 9SL153-516
Firmware: CC46
WWN: 5000C5003F73AB48
Date Code: 12245
Site Code: TK