Your hard drive has a formatted capacity of about 931 GB, of which about 912 is assigned to the C partition.
BUT, BUT, BUT, C actually contains only about 82 GB of stuff.
You have about 912 minus 82 GB of free unused space on C.
That's 830 GB unused on C.
You could replicate you
entire hard drive on a 128 GB SSD.
Which leaves me asking why you bought a 500 GB SSD?
If you can cancel the order, I'd buy a 250 GB version of that drive from Newegg for $40:
Crucial MX500 2.5" 250GB SATA III 3D NAND Internal Solid State Drive (SSD) CT250MX500SSD1 - Newegg.com
Unless you think your TOTAL storage requirements are going to grow from the current under 100 GB to 400 or 500 in the next few years.
I don't see why you have to use your old drive at all.
You have the external Passport drive that you could use for data backup.
Or you could even use the current hard drive as an internal backup.
If you insist on NOT doing a clean install, I think Acronis may balk if you try to "copy" your 911.75 GB C partition to a 500 GB drive, but there are likely ways around that.
Jesse---I'd rethink what you are up to.
Getting a Crucial SSD is a good idea.
But the rest of your ideas need some more thought.