The Kingston 4GB RAM modules were $20 each, The PCI Express USB 3.0 Card for the external HDD was $52, The Seagate 4TB SSHD internal HDD was $180, The Seagate external 4TB BackupPlus drive was $120, Windows 10 Home Edition 64bit was $110, Macrium Reflect Personal License was $70, and I pay $75 for Kaspersky service including backup disc and extended download service for 2 computers for 2 years.
Since my computer was a little older, wanted to do the USB 3.0 upgrade for the external HDD. USB 3.0 has a transfer rate of 4.8 Gbps vs a transfer rate for USB 2.0 of 480Mbps. Seagate included the USB 3.0 cable in the BackupPlus box, which is nice because they are not cheap. I bought the HDD's directly from Seagate because 1. the shipping was free, and 2. warranty non-issues.
So, my workstations are running great and am happy.