Just completed the swap with a

Western Digital 10TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD101EFBX

and my new iFixit tools and had no problems whatsoever. I did not need to trim the rubber seats for the top of the Time capsule, but did have to trim the rubber bottom gasket.

Also, I used a long set of tweezers rather than the chop stick. However, I am feeling the need for Chinese for lunch!