Opened both of the Pluses tonight. Both have signatures inside also. I am not experienced with electronics welding etc nor could i discharge the CRT so i didn't touch this time anything Will do so at work after a vacation i am having.

The better unit indeed have an HDD inside. It does look like stock plus model to me.

Will later put two 1MB RAM to the motherboard from the dead Classic i have and why not, try finding two more so could have full 4Mb. That would be nice, 4Mb RAM AND HDD!