I managed to drop my drive which took off the 4R7 coil and broke it, although nothing else looks broken [my highlighting]
FYI since you've dropped the drive, there could be internal mechanical damage that you can't see - just because nothing else looks
broken, doesn't mean it's OK. Powering-on a drive in that state can cause further problems and reduce the chances of successful recovery.
would this or anything similar be sufficient to make the disk work again?
If you accept all the risks of your planned DIY repair, and have good soldering equipment and skills, then that component from RS may indeed be electrically close enough to substitute the original one (you'll need to check the mechanical fit too, or else use some ingenuity when mounting it). However for the reason above (or others), your repair attempt may not be successful. Your risk, your choice.
Edit: While I've been typing this, I see that BlackST has also given you a similar warning