Chosen Solution
Assuming this MBP works, I just bought a i7-3520M 13” Mid 2012 MBP 13” on eBay for $76 ($65+shipping) since it wasn’t tested and needs a hard drive :-). I know I’m taking a chance on this, but I won’t feel bad if this doesn’t work out. From what I can tell, the one I bought is a factory 8GB RAM system. Since I need to purchase a drive from the start, I might as well start out with an SSD since they’re cheap. I know the HD cables are a wildcard on the 13” so I plan to replace it with the SSD installation so I don’t need to worry about the original cable being broken but in regards to the SSD I’m not sure which filesystem is better. When I set the MBP up, should I format it as an HFS+ system, or use APFS? I’m torn between running HS due to the age of it, or at least Mojave if I don’t install Catalina. As far as the SSD goes on this I’m looking into Samsung.
APFS is a very chatty protocol Vs HFS+SATA interface does not offer that many buffers, PCIe offer more buffers What do you think is the better match up?